Question 1

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

Accepted Answer

A compound that completely dissociates into ions in water.

Question 2

Which of the following is the correct net ionic equation for the reaction between aqueous solutions of sodium sulfate and barium chloride?

Accepted Answer

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

Question 3

A student mixes 50.0 mL of 0.200 M HCl with 50.0 mL of 0.200 M NaOH. What is the concentration of ions in the final solution after the reaction is complete?

Accepted Answer

0.100 M $$\mathrm{Na^+}$$ and 0.100 M $$\mathrm{Cl^-}$$

Question 4

Which of the following reactions is a redox reaction?

Accepted Answer

$$\mathrm{Zn (s) + $$CuSO_4$$ (aq) \rightarrow $$ZnSO_4$$ (aq) + Cu (s)}$$

Question 5

A solution is prepared by diluting 25.0 mL of 6.00 M HNO$$_3 to a $$final volume of 300.0 mL. What is the final concentration?

Accepted Answer

$$0.500\ \mathrm{M}$$

Question 6

Which of the following compounds is insoluble in water according to solubility rules?

Accepted Answer

$$\mathrm{AgCl}$$

Question 7

In the reaction $$\mathrm{2Al (s) + 3CuSO_4 (aq) \rightarrow Al_2$(SO_4$)_3 (aq) + 3Cu (s)}$$, which species is the reducing agent?

Accepted Answer

$$\mathrm{Al}$$

Question 8

A chemist reacts 10.0 g of CaCl$$_2$$ with 12.0 g of Na$$_2CO$_3$$ according to the equation $$\mathrm{$$CaCl_2$$ + Na_2CO_3 \rightarrow $$CaCO_3$$ + 2NaCl}. $$What is the limiting reactant?

Accepted Answer

Na$$_2CO$_3$$

Question 9

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

Accepted Answer

A reaction in which two compounds exchange ions to form two new compounds.

Question 10

A titration is performed by adding 0.100 M NaOH to 25.0 mL of 0.200 M HCl. What volume of NaOH is required to reach the equivalence point?

Accepted Answer

50.0 mL

Question 11

Which of the following is the correct formula for the compound formed between aluminum and sulfate ions?

Accepted Answer

$$\mathrm{Al_2$(SO_4$)_3}$$

Question 12

What is the percent yield if 5.00 g of product is obtained when the theoretical yield is 6.50 g?

Accepted Answer

$$76.9\%$$

Question 13

Which of the following is a weak electrolyte?

Accepted Answer

CH$$_3$$COOH

Question 14

How many moles of $$\mathrm{Cl^-}$$ ions are present in 0.500 L of 0.300 M MgCl$$_2$$?

Accepted Answer

0.600 mol

Question 15

Which of the following best describes the role of the oxidizing agent in a redox reaction?

Accepted Answer

It gains electrons and is reduced.

Question 16

A solution contains 0.250 mol of Na$$_2SO$_4$$ dissolved in enough water to make 500.0 mL of solution. What is the molarity of the solution?

Accepted Answer

$$0.500\ \mathrm{M}$$

Question 17

Which of the following is the correct balanced equation for the neutralization of sulfuric acid with potassium hydroxide?

Accepted Answer

$$\mathrm{H_2SO_4 (aq) + 2KOH (aq) \rightarrow K_2SO_4 (aq) + 2H_2O (l)}$$

Question 18

Which of the following statements about non-electrolytes is correct?

Accepted Answer

They do not produce ions in solution.

Question 19

A sample of 0.100 mol of glucose (C$$_6H$_{12}O$_6) is $$dissolved in enough water to make 250.0 mL of solution. What is the molarity of the solution?

Accepted Answer

$$0.400\ \mathrm{M}$$

Study Guide: Chemical Reactions, Stoichiometry, and Aqueous Solutions

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