Question 1

Which of the following compounds is most likely to be soluble in water according to solubility rules?

Accepted Answer

NaNO\_3

Question 2

What is the net ionic equation for the reaction between aqueous solutions of Na\_2SO\_4 and BaCl\_2?

Accepted Answer

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

Question 3

Which of the following is a strong acid?

Accepted Answer

HNO\_3

Question 4

A solution is prepared by dissolving 0.50 mol of NaOH in enough water to make 1.00 L of solution. What is the molarity of the solution?

Accepted Answer

$$0.50\ \mathrm{M}$$

Question 5

Which of the following ions has a -2 charge?

Accepted Answer

SO\_$$4^{2-}$$

Question 6

What is the oxidation state of sulfur in the sulfate ion ($$\mathrm{SO_4$^{2-}}$$)?

Accepted Answer

+6

Question 7

Which of the following is the correct balanced molecular equation for the reaction between hydrochloric acid and sodium hydroxide?

Accepted Answer

$$\mathrm{HCl (aq) + NaOH (aq) \rightarrow NaCl (aq) + H_2O (l)}$$

Question 8

A 25.0 mL sample of 0.100 M HCl is titrated with 0.100 M NaOH. What volume of NaOH is required to reach the equivalence point?

Accepted Answer

$$25.0\ \mathrm{mL}$$

Question 9

Which of the following is a weak base?

Accepted Answer

NH\_3

Question 10

What is the formula for the chromate ion?

Accepted Answer

CrO\_$$4^{2-}$$

Question 11

Which of the following statements about strong electrolytes is correct?

Accepted Answer

They completely dissociate into ions in water.

Question 12

A gas sample has a volume of 2.00 L at 1.00 atm. If the pressure is increased to 2.00 atm at constant temperature, what is the new volume?

Accepted Answer

$$1.00\ \mathrm{L}$$

Question 13

Which of the following is the correct formula for the acetate ion?

Accepted Answer

CH\_$$3COO^{-}$$

Question 14

Which of the following reactions is a redox reaction?

Accepted Answer

$$\mathrm{Zn (s) + 2HCl (aq) \rightarrow $$ZnCl_2$$ (aq) + H_2$ (g)}$$

Question 15

What is the total pressure of a gas mixture containing 0.50 atm O\_2, 0.30 atm N\_2, and 0.20 atm CO\_2?

Accepted Answer

$$1.00\ \mathrm{atm}$$

Question 16

Which of the following is the correct net ionic equation for the reaction between aqueous solutions of AgNO\_3 and NaCl?

Accepted Answer

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

Question 17

A student needs to prepare 250 mL of 0.200 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 18

Which of the following polyatomic ions has a -3 charge?

Accepted Answer

PO\_$$4^{3-}$$

Question 19

Which of the following is the correct formula for ammonium ion?

Accepted Answer

NH\_$$4^{+}$$

Solutions, Aqueous Reactions, and Chemical Species in General Chemistry

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