Question 1

Which of the following statements best describes a strong electrolyte in aqueous solution?

Accepted Answer

It is a substance that completely dissociates into ions in solution.

Question 2

Which of the following compounds is a weak electrolyte when dissolved in water?

Accepted Answer

CH\_3COOH

Question 3

A student mixes aqueous solutions of AgNO\_3 and NaCl. What is the net ionic equation for the reaction that occurs?

Accepted Answer

$$\mathrm{Ag^+(aq) + Cl^-(aq) \rightarrow AgCl(s)}$$

Question 4

Which of the following is most likely to form a precipitate when mixed with Na\_2CO\_3(aq)?

Accepted Answer

MgCl\_2(aq)

Question 5

Which of the following is a correct molecular equation for the reaction between Pb(NO\_3)\_2(aq) and NaI(aq)?

Accepted Answer

$$\mathrm{Pb(NO_3$)_2(aq) + 2NaI(aq) \rightarrow $$PbI_2$$(s) + 2NaNO_3(aq)}$$

Question 6

Which of the following is a strong acid?

Accepted Answer

HCl

Question 7

A solution is prepared by dissolving 0.50 mol of NaCl in enough water to make 1.0 L of solution. What is the molarity of NaCl?

Accepted Answer

$$0.50\ \mathrm{M}$$

Question 8

Which of the following best describes a metathesis (exchange) reaction?

Accepted Answer

A reaction in which positive and negative ions exchange partners.

Question 9

Which of the following compounds is soluble in water according to the solubility guidelines?

Accepted Answer

Na\_2CO\_3

Question 10

What is the net ionic equation for the neutralization reaction between HCl(aq) and NaOH(aq)?

Accepted Answer

$$\mathrm{H^+(aq) + OH^-(aq) \rightarrow H_2O(l)}$$

Question 11

A student wants to prepare 250 mL of 0.100 M NaCl solution from a 1.00 M stock solution. What volume of stock solution should be used?

Accepted Answer

$$50.0\ \mathrm{mL}$$

Question 12

Which of the following is a correct ionic equation for the reaction of AgNO\_3(aq) with KCl(aq)?

Accepted Answer

$$\mathrm{Ag^+(aq) + Cl^-(aq) \rightarrow AgCl(s)}$$

Question 13

Which of the following is a nonelectrolyte?

Accepted Answer

CH\_3OH

Question 14

A solution contains 0.20 mol of KNO\_3 in 500 mL of water. What is the molarity of the solution?

Accepted Answer

$$0.40\ \mathrm{M}$$

Question 15

Which of the following reactions will produce a gas when an acid reacts with a carbonate?

Accepted Answer

$$\mathrm{HCl(aq) + Na_2CO_3(aq) \rightarrow NaCl(aq) + CO_2$(g) + H_2O(l)}$$

Question 16

Which of the following is the correct formula for calculating the dilution of a solution?

Accepted Answer

$$M_1V_1 = M_2V_2$$

Question 17

During a titration, 25.0 mL of 0.100 M HCl is neutralized by NaOH. What volume of 0.200 M NaOH is required?

Accepted Answer

$$12.5\ \mathrm{mL}$$

Question 18

Which of the following is a correct net ionic equation for the reaction between H\_2SO\_4(aq) and Ba(OH)\_2(aq)?

Accepted Answer

$$SO_4$$^{2-}(aq) + $$Ba^{2+}(aq$$) \rightarrow $$BaSO_4(s$$)$$

Question 19

Which of the following is a weak base?

Accepted Answer

NH\_3

Aqueous Reactions and Solution Stoichiometry: Study Notes

Guida di studio - Domande di pratica