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</div><h2>SL Paper 1</h2><div class="question">
<p class="p1">Which are definitions of an acid according to the Brønsted-Lowry and Lewis theories?</p>
<p class="p1"><img src="images/Schermafbeelding_2016-10-19_om_07.29.42.png" alt="M09/4/CHEMI/SPM/ENG/TZ2/21"></p>
</div>
<br><hr><br><div class="question">
<p>Which statement is <strong>incorrect</strong> for a 0.10 mol dm<sup>–3</sup> HCOOH solution?</p>
<p>A. pH = 1</p>
<p>B. [H<sup>+</sup>] << 0.10 mol dm<sup>–3</sup></p>
<p>C. [HCOO<sup>–</sup>] is approximately equal to [H<sup>+</sup>]</p>
<p>D. HCOOH is partially ionized</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which species behave as Brønsted-Lowry acids in the following reversible reaction?</p>
<p class="p1">\[{{\text{H}}_2}{\text{PO}}_4^ - ({\text{aq)}} + {\text{C}}{{\text{N}}^ - }({\text{aq)}} \rightleftharpoons {\text{HCN(aq)}} + {\text{HPO}}_4^{2 - }({\text{aq)}}\]</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>HCN and \({\text{C}}{{\text{N}}^ - }\)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>HCN and \({\text{HPO}}_4^{2 - }\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{2}}}{\text{PO}}_4^ - \) and \({\text{HPO}}_4^{2 - }\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>HCN and \({{\text{H}}_{\text{2}}}{\text{PO}}_4^ - \)</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which row correctly describes \({\text{1.0 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}{\text{ NaOH(aq)}}\)?</p>
<p class="p1"><img src="images/Schermafbeelding_2016-09-23_om_05.47.33.png" alt="N12/4/CHEMI/SPM/ENG/TZ0/22"></p>
</div>
<br><hr><br><div class="question">
<p class="p1">What is the formula of the conjugate base of the hydrogenphosphate ion, <span class="s1">\({\rm{HPO}}_4^{2 - }\)</span>?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{2}}}{\text{PO}}_4^ - \)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{3}}}{\text{P}}{{\text{O}}_{\text{4}}}\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({\text{HPO}}_4^ - \)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{PO}}_4^{3 - }\)</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Consider the equilibrium below.</p>
<p class="p1">\[{\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{COOH(aq)}} + {{\text{H}}_{\text{2}}}{\text{O(l)}} \rightleftharpoons {\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{CO}}{{\text{O}}^ - }{\text{(aq)}} + {{\text{H}}_{\text{3}}}{{\text{O}}^ + }{\text{(aq)}}\]</p>
<p class="p1">Which species represent a conjugate acid-base pair?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{COOH}}\) and \({{\text{H}}_{\text{2}}}{\text{O}}\)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{2}}}{\text{O}}\) and \({\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{CO}}{{\text{O}}^ - }\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{3}}}{{\text{O}}^ + }\) and \({{\text{H}}_{\text{2}}}{\text{O}}\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{CO}}{{\text{O}}^ - }\) and \({{\text{H}}_{\text{3}}}{{\text{O}}^ + }\)</p>
</div>
<br><hr><br><div class="question">
<p>What will happen if the pressure is increased in the following reaction mixture at equilibrium?</p>
<p style="padding-left: 90px;">CO<sub>2</sub> (g) + H<sub>2</sub>O (l) \( \rightleftharpoons \) H<sup>+</sup> (aq) + HCO<sub>3</sub><sup>−</sup> (aq)</p>
<p>A. The equilibrium will shift to the right and pH will decrease.</p>
<p>B. The equilibrium will shift to the right and pH will increase.</p>
<p>C. The equilibrium will shift to the left and pH will increase.</p>
<p>D. The equilibrium will shift to the left and pH will decrease.</p>
</div>
<br><hr><br><div class="question">
<p style="text-align: center;">Activity series of selected elements:</p>
<p style="text-align: center;">\[{\text{greatest activity}}\xleftarrow{{{\text{K, Ca, Al, Fe, H, Cu, Ag, Au}}}}{\text{least activity}}\]</p>
<p>Which react with dilute sulfuric acid?</p>
<p> I. Cu</p>
<p> II. CuO</p>
<p> III. CuCO<sub>3</sub></p>
<p>A. I and II only</p>
<p>B. I and III only</p>
<p>C. II and III only</p>
<p>D. I, II and III</p>
</div>
<br><hr><br><div class="question">
<p>A student carried out a titration to determine the concentration of an acid and found that his value had good precision but poor accuracy. Which process explains this outcome?</p>
<p>A. Consistently overshooting the volume of solution from the burette into the flask.</p>
<p>B. Collection of insufficient titration data.</p>
<p>C. Reading the meniscus in the burette at a different angle each time.</p>
<p>D. Forgetting to rinse the flask after one of the titrations.</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Three aqueous solutions of nitric acid are listed below.</p>
<p class="p1">W. <span class="Apple-converted-space"> </span>\({\text{0.100 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}{\text{ HN}}{{\text{O}}_{\text{3}}}{\text{(aq)}}\)</p>
<p class="p1">X. <span class="Apple-converted-space"> </span>\({\text{0.001 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}{\text{ HN}}{{\text{O}}_{\text{3}}}{\text{(aq)}}\)</p>
<p class="p1">Y. <span class="Apple-converted-space"> </span>\({\text{0.010 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}{\text{ HN}}{{\text{O}}_{\text{3}}}{\text{(aq)}}\)</p>
<p class="p1">What is the correct order of <strong>increasing </strong>pH of these solutions?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({\text{W}} < {\text{X}} < {\text{Y}}\)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{W}} < {\text{Y}} < {\text{X}}\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({\text{X}} < {\text{W}} < {\text{Y}}\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{X}} < {\text{Y}} < {\text{W}}\)</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which pH value is that of an aqueous solution of carbon dioxide?</p>
<p class="p1">A. 2.1</p>
<p class="p1">B. 5.6</p>
<p class="p1">C. 9.8</p>
<p class="p1">D. 12.2</p>
</div>
<br><hr><br><div class="question">
<p>Which is an acid-base conjugate pair?</p>
<p>A. H<sub>3</sub>O<sup>+</sup> / OH<sup>–</sup></p>
<p>B. H<sub>2</sub>SO<sub>4</sub> / SO<sub>4</sub><sup>2–</sup></p>
<p>C. CH<sub>3</sub>COOH / H<sub>3</sub>O<sup>+</sup></p>
<p>D. CH<sub>3</sub>NH<sub>3</sub><sup>+</sup> / CH<sub>3</sub>NH<sub>2</sub></p>
</div>
<br><hr><br><div class="question">
<p>Which statement is correct?</p>
<p>A. A strong acid is a good proton donor and has a strong conjugate base.</p>
<p>B. A weak acid is a poor proton acceptor and has a strong conjugate base.</p>
<p>C. A strong acid is a good proton donor and has a weak conjugate base.</p>
<p>D. A strong base is a good proton donor and has a weak conjugate acid.</p>
</div>
<br><hr><br><div class="question">
<p class="p1">When equal volumes of four \({\text{0.1 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}\) solutions are arranged in order of increasing pH (lowest pH first), what is the correct order?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}} < {\text{HN}}{{\text{O}}_{\text{3}}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{N}}{{\text{H}}_{\text{2}}} < {\text{KOH}}\)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{HN}}{{\text{O}}_{\text{3}}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{N}}{{\text{H}}_{\text{2}}} < {\text{KOH}}\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{N}}{{\text{H}}_{\text{2}}} < {\text{HN}}{{\text{O}}_{\text{3}}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}} < {\text{KOH}}\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{KOH}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{C}}{{\text{H}}_{\text{2}}}{\text{N}}{{\text{H}}_{\text{2}}} < {\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}} < {\text{HN}}{{\text{O}}_{\text{3}}}\)</p>
</div>
<br><hr><br><div class="question">
<p class="p1">What is the pH of the solution formed when \({\text{10 c}}{{\text{m}}^{\text{3}}}\) of HCl(aq) with pH 1.0 is added to \({\text{990 c}}{{\text{m}}^{\text{3}}}\) of water?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>1.5</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>2.0</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>2.5</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>3.0</p>
</div>
<br><hr><br><div class="question">
<p>Which are acid-base pairs according to the Brønsted‒Lowry theory?</p>
<p>I. \({\text{HN}}{{\text{O}}_{\text{3}}}{\text{/NO}}_{\text{3}}^ - \)</p>
<p>II. \({{\text{H}}_{\text{3}}}{{\text{O}}^ + }{\text{/O}}{{\text{H}}^ - }\)</p>
<p>III. \({\text{HCOOH/HCO}}{{\text{O}}^ - }\)</p>
<p>A. I and II only</p>
<p>B. I and III only</p>
<p>C. II and III only</p>
<p>D. I, II and III</p>
</div>
<br><hr><br><div class="question">
<p class="p1">The pH of a solution changes from \({\text{pH}} = 2\) to \({\text{pH}} = 5\). What happens to the concentration of the hydrogen ions during this pH change?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>It decreases by a factor of 1000</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>It increases by a factor of 1000</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>It decreases by a factor of 100</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>It increases by a factor of 100</p>
</div>
<br><hr><br><div class="question">
<p class="p1">What is the Brønsted–Lowry conjugate base of \({{\text{H}}_{\text{2}}}{\text{PO}}_4^ - \)?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{3}}}{\text{P}}{{\text{O}}_{\text{4}}}\)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{HPO}}_4^{2 - }\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({\text{PO}}_4^{3 - }\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{H}}{{\text{O}}^ - }\)</p>
</div>
<br><hr><br><div class="question">
<p>10.0 cm<sup>3</sup> of an aqueous solution of sodium hydroxide of pH = 10 is mixed with 990.0 cm<sup>3</sup> of distilled water. What is the pH of the resulting solution?</p>
<p>A. 8</p>
<p>B. 9</p>
<p>C. 11</p>
<p>D. 12</p>
</div>
<br><hr><br><div class="question">
<p>Which of the following is correct?</p>
<p>A. A weak acid is a proton donor and its aqueous solution shows good conductivity.</p>
<p>B. A weak acid is a proton donor and its aqueous solution shows poor conductivity.</p>
<p>C. A weak acid is a proton acceptor and its aqueous solution shows good conductivity.</p>
<p>D. A weak acid is a proton acceptor and its aqueous solution shows poor conductivity.</p>
</div>
<br><hr><br><div class="question">
<p>A student adds 0.3 g of magnesium metal to equal volumes of hydrochloric acid and ethanoic acid of the same concentrations in separate flasks. Which statement is correct?</p>
<p>A. Hydrochloric acid reacts more rapidly as it has a higher pH than ethanoic acid.</p>
<p>B. A greater total volume of \({{\text{H}}_{\text{2}}}\) gas is produced with hydrochloric acid than with ethanoic acid.</p>
<p>C. The same total volume of \({{\text{H}}_{\text{2}}}\) gas is produced with both hydrochloric acid and ethanoic acid.</p>
<p>D. Ethanoic acid reacts more slowly because it has a lower pH than hydrochloric acid.</p>
</div>
<br><hr><br><div class="question">
<p class="p1">What is the conjugate base of \({{\text{H}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}}\) according to the Brønsted-Lowry theory?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({\text{CO}}_{\text{3}}^{{\text{2}} - }\)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{HCO}}_{\text{3}}^ - \)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{3}}}{\text{CO}}_{\text{3}}^ + \)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{O}}_{\text{2}}}\)</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which products would be formed when hydrochloric acid reacts with magnesium oxide?</p>
<p class="p1">A. magnesium chloride and carbon dioxide</p>
<p class="p1">B. magnesium chloride, hydrogen gas and water</p>
<p class="p1">C. magnesium, hydrogen gas and water</p>
<p class="p1">D. magnesium chloride and water</p>
</div>
<br><hr><br><div class="question">
<p class="p1">A solution of acid A has a pH of 1 and a solution of acid B has a pH of 2. Which statement <strong>must</strong> be correct?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>Acid A is stronger than acid B.</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{[A]}} > {\text{[B]}}\).</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>The concentration of \({{\text{H}}^ + }\) ions in A is higher than in B.</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>The concentration of \({{\text{H}}^ + }\) ions in B is twice the concentration of \({{\text{H}}^ + }\) ions in A.</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which gas in the atmosphere causes the pH of unpolluted rain to be approximately 6?</p>
<p class="p1">A. Carbon dioxide</p>
<p class="p1">B. Sulfur dioxide</p>
<p class="p1">C. Oxygen</p>
<p class="p1">D. Nitrogen</p>
</div>
<br><hr><br><div class="question">
<p class="p1">What are the conjugate acid–base pairs in the following reaction?</p>
<p class="p1">\[{\text{HCO}}_3^ - {\text{(aq)}} + {{\text{H}}_2}{\text{O(l)}} \rightleftharpoons {\text{O}}{{\text{H}}^ - }{\text{(aq)}} + {{\text{H}}_2}{\text{C}}{{\text{O}}_3}{\text{(aq)}}\]</p>
<p class="p2"><img src="images/Schermafbeelding_2016-08-26_om_08.46.06.png" alt="N13/4/CHEMI/SPM/ENG/TZ0/21"></p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which of the following are weak acids in aqueous solution?</p>
<p class="p1">I. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}}\)</p>
<p class="p1">II. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}}\)</p>
<p class="p1">III. <span class="Apple-converted-space"> </span>HCl</p>
<p class="p1"> </p>
<p class="p1">A. <span class="Apple-converted-space"> </span>I and II only</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>I and III only</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>II and III only</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>I, II and III</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which list contains only strong bases?</p>
<p class="p1">A. ammonia, sodium hydroxide, ethylamine</p>
<p class="p1">B. potassium hydroxide, ammonia, sodium hydroxide</p>
<p class="p1">C. lithium hydroxide, potassium hydroxide, barium hydroxide</p>
<p class="p1">D. ammonia, ethylamine, barium hydroxide</p>
</div>
<br><hr><br><div class="question">
<p>\({\text{10.0 c}}{{\text{m}}^{\text{3}}}\) of a solution of a strong acid with a pH of 3 is added to a volumetric flask and the total volume is made up to \({\text{1.00 d}}{{\text{m}}^{\text{3}}}\) by adding distilled water. The resulting solution is then thoroughly mixed.</p>
<p>What is the pH of the diluted solution?</p>
<p>A. 1</p>
<p>B. 2</p>
<p>C. 4</p>
<p>D. 5</p>
</div>
<br><hr><br><div class="question">
<p class="p1">A solution of acid HX has a pH = 1 and a solution of acid HY has a pH = 3. Which statement <strong>must </strong>be correct?</p>
<p class="p2">A. <span class="Apple-converted-space"> </span>HX is a stronger acid than HY.</p>
<p class="p2">B. <span class="Apple-converted-space"> </span>HY is a stronger acid than HX.</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>The \({\text{[}}{{\text{H}}^ + }{\text{]}}\) in the solution of HX is 100 times greater than the \({\text{[}}{{\text{H}}^ + }{\text{]}}\) in the solution of HY.</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>The \({\text{[}}{{\text{H}}^ + }{\text{]}}\) in the solution of HY is 100 times greater than the \({\text{[}}{{\text{H}}^ + }{\text{]}}\) in the solution of HX.</p>
</div>
<br><hr><br><div class="question">
<p>Which compound reacts with calcium oxide, CaO?</p>
<p>A. \({{\text{K}}_{\text{2}}}{\text{O}}\)</p>
<p>B. \({\text{N}}{{\text{a}}_{\text{2}}}{\text{O}}\)</p>
<p>C. \({\text{S}}{{\text{O}}_{\text{2}}}\)</p>
<p>D. MgO</p>
</div>
<br><hr><br><div class="question">
<p>Which 1.0 mol\(\,\)dm<sup>–3</sup> solution has the highest pH?</p>
<p>A. Ammonium chloride</p>
<p>B. Sulfuric acid</p>
<p>C. Sodium chloride</p>
<p>D. Ammonia</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which is <span class="s1"><strong>not </strong></span>a conjugate acid-base pair?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({\text{HN}}{{\text{O}}_{\text{3}}}\) and \({\text{NO}}_3^ - \)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}}\) and \({\text{C}}{{\text{H}}_{\text{3}}}{\text{CO}}{{\text{O}}^ - }\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{3}}}{{\text{O}}^ + }\) and \({\text{O}}{{\text{H}}^ - }\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{HSO}}_4^ - \) and \({\text{SO}}_{{\text{42}}}^{2 - }\)</p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which group of three compounds contains only weak acids and bases?</p>
<p class="p1"><img src="images/Schermafbeelding_2016-08-26_om_08.48.08.png" alt="N13/4/CHEMI/SPM/ENG/TZ0/22"></p>
</div>
<br><hr><br><div class="question">
<p class="p1">Which compound is a strong acid?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({\text{N}}{{\text{H}}_{\text{3}}}\)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{HN}}{{\text{O}}_{\text{3}}}\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}}\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}}\)</p>
</div>
<br><hr><br><div class="question">
<p>What occurs when solid sodium hydrogen carbonate reacts with aqueous sulfuric acid? </p>
<p>A. Bubbles of sulfur dioxide form. </p>
<p>B. Bubbles of both hydrogen and carbon dioxide form. </p>
<p>C. Bubbles of hydrogen form. </p>
<p>D. Bubbles of carbon dioxide form.</p>
</div>
<br><hr><br><div class="question">
<p>A solution of \({\text{50 c}}{{\text{m}}^{\text{3}}}\) hydrochloric acid has a pH of 4. What is the final pH if \({\text{450 c}}{{\text{m}}^{\text{3}}}\) of water is added?</p>
<p>A. 3</p>
<p>B. 4</p>
<p>C. 5</p>
<p>D. 6</p>
</div>
<br><hr><br><div class="question">
<p>What are the products of the reaction between sulfuric acid and sodium hydrogen carbonate?</p>
<p>A. NaSO<sub>4</sub> + H<sub>2</sub>O + CO<sub>2</sub></p>
<p>B. Na<sub>2</sub>SO<sub>4</sub> + CO<sub>2</sub></p>
<p>C. Na<sub>2</sub>SO<sub>4</sub> + H<sub>2</sub>O + CO<sub>2</sub></p>
<p>D. NaSO<sub>4</sub> + H<sub>2</sub>CO<sub>3</sub></p>
</div>
<br><hr><br><div class="question">
<p class="p1">An example of a strong acid solution is perchloric acid, \({\text{HCl}}{{\text{O}}_{\text{4}}}\), in water. Which statement is correct for this solution?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({\text{HCl}}{{\text{O}}_{\text{4}}}\) is completely dissociated in the solution.</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{HCl}}{{\text{O}}_{\text{4}}}\) exists mainly as molecules in the solution.</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>The solution reacts only with strong bases.</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>The solution has a pH value greater than 7.</p>
</div>
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<p style="display: inline !important;">Which is a conjugate Brønsted–Lowry acid-base pair?</p>
<p><img src="data:image/png;base64,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" alt></p>
A. CH<sub>3</sub>COO<sup>−</sup> / H<sub>3</sub>O<sup>+</sup><br>B. H<sub>2</sub>O / CH<sub>3</sub>COO<sup>−</sup><br>C. H<sub>2</sub>O / H<sub>3</sub>O<sup>+</sup><br>D. CH<sub>3</sub>COOH / H<sub>2</sub>O</div>
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<br><hr><br><div class="question">
<p class="p1">Which \({\text{0.10 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}\) solution would have the highest conductivity?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>HCl</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{N}}{{\text{H}}_{\text{3}}}\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH}}\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({{\text{H}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}}\)</p>
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<br><hr><br><div class="question">
<p class="p1">Which list contains only strong acids?</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH, }}{{\text{H}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}}{\text{, }}{{\text{H}}_{\text{3}}}{\text{P}}{{\text{O}}_{\text{4}}}\)</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>\({\text{HCl, HN}}{{\text{O}}_{\text{3}}}{\text{, }}{{\text{H}}_{\text{2}}}{\text{C}}{{\text{O}}_{\text{3}}}\)</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>\({\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH, HN}}{{\text{O}}_{\text{3}}}{\text{, }}{{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\)</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>\({\text{HCl, HN}}{{\text{O}}_{\text{3}}}{\text{, }}{{\text{H}}_{\text{2}}}{\text{S}}{{\text{O}}_{\text{4}}}\)</p>
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<br><hr><br><div class="question">
<p class="p1">For equal volumes of \({\text{1.0 mol}}\,{\text{d}}{{\text{m}}^{ - 3}}\) solutions of hydrochloric acid, HCl(aq), and methanoic acid, HCOOH(aq), which statements are correct?</p>
<p class="p1" style="padding-left: 30px;">I. <span class="Apple-converted-space"> </span>HCl dissociates more than HCOOH</p>
<p class="p1" style="padding-left: 30px;">II. <span class="Apple-converted-space"> </span>HCl is a better electrical conductor than HCOOH</p>
<p class="p1" style="padding-left: 30px;">III. <span class="Apple-converted-space"> </span>HCl will neutralize more NaOH than HCOOH</p>
<p class="p1">A. <span class="Apple-converted-space"> </span>I and II only</p>
<p class="p1">B. <span class="Apple-converted-space"> </span>I and III only</p>
<p class="p1">C. <span class="Apple-converted-space"> </span>II and III only</p>
<p class="p1">D. <span class="Apple-converted-space"> </span>I, II and III</p>
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<br><hr><br><div class="question">
<p>Which of the following gases does <strong>not</strong> result in acid deposition?</p>
<p>A. CO<sub>2</sub><br>B. NO<sub>2</sub><br>C. NO<br>D. SO<sub>2</sub></p>
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<br><hr><br><div class="question">
<p>Which classification is correct for the reaction?</p>
<p style="text-align: center;">H<sub>2</sub>PO<sub>4</sub><sup>−</sup>(aq) + H<sub>2</sub>O(l) → HPO<sub>4</sub><sup>2−</sup>(aq) + H<sub>3</sub>O<sup>+</sup>(aq)</p>
<p><img src="images/Schermafbeelding_2018-08-09_om_12.48.11.png" alt="M18/4/CHEMI/SPM/ENG/TZ1/19"></p>
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<br><hr><br><div class="question">
<p class="p1">Which descriptions are correct for both a Brønsted–Lowry acid and a Lewis acid?</p>
<p class="p1"><img src="images/Schermafbeelding_2016-11-03_om_14.02.37.png" alt="N11/4/CHEMI/SPM/ENG/TZ0/21"></p>
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<br><hr><br><div class="question">
<p>Which species behave as Brønsted–Lowry bases in the following reaction? </p>
<p style="text-align: center;">H<sub>2</sub>SO<sub>4</sub> + HNO<sub>3</sub> <img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABIAAAARCAYAAADQWvz5AAABFklEQVQ4EWP8////fwYqACYqmAE2YqAM+sxw98Yz7J4AhRHR4Pf1/zEMDP8rtz/A0MKAIUJI4Ol2UOT8n3HiFYpKFgaGPwwPL19iePHtN3Yno4myckkzrC5gYAi1EGNgOPGUId1cCqyC8f//7/83NacyzLvFwMCLpgkXl4tLhIGLi4HhzTdJhoaJZQzKHAwMjCD34dJAijjYa5c3LWE49o6NgZftF8Pnzz+J1v/zJzuDTWQMg5EoCwMLAwMLg6q+BEO+gifDfgYGhhmrlzKwf/lFpGFsDKwwlfCgf3Xovz8Dw/+mvU/hQqQwUKL/NzRqJ559R4oZYLUoWYRFyoPh3aW9DDpcMPcST1Mt1lBcRLz9mCqpZhAAjQ1JgToZNTsAAAAASUVORK5CYII=" alt> H<sub>2</sub>NO<sub>3</sub><sup>+</sup> + HSO<sub>4</sub><sup>- </sup></p>
<p>A. HNO<sub>3</sub> and HSO<sub>4</sub><sup>-</sup><sup> </sup></p>
<p>B. HNO<sub>3</sub> and H<sub>2</sub>NO<sub>3</sub><sup>+</sup> </p>
<p>C. H<sub>2</sub>SO<sub>4</sub> and HSO<sub>4</sub><sup>-</sup> </p>
<p>D. H<sub>2</sub>NO<sub>3</sub><sup>+</sup> and HSO<sub>4</sub><sup>-</sup></p>
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