Question 1

A solution is prepared by dissolving 10.0 g of NaCl in enough water to make 500 mL of solution. What is the molarity of the NaCl solution? (Molar mass of NaCl = 58.44 g/mol)

Accepted Answer

$$0.34\ \mathrm{M}$$

Question 2

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

Accepted Answer

$$\mathrm{AgCl}$$

Question 3

Which of the following is a strong acid?

Accepted Answer

$$\mathrm{$$HNO_3$$}$$

Question 4

A 250 mL sample of 0.40 M HCl is diluted to a final volume of 1.00 L. What is the final concentration?

Accepted Answer

$$0.10\ \mathrm{M}$$

Question 5

Which of the following is a weak base?

Accepted Answer

$$\mathrm{NH_3$}$$

Question 6

Which of the following ions will form a precipitate when mixed with $$\mathrm{Ba$$^{2+}$$} in $$aqueous solution?

Accepted Answer

$$\mathrm{SO_4$^{2-}}$$

Question 7

What is the net ionic equation for the reaction between $$\mathrm{Na_2SO_4}$$ and $$\mathrm{$$BaCl_2$$} in $$water?

Accepted Answer

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

Question 8

Which of the following is a redox reaction?

Accepted Answer

Reaction of $$\mathrm{Zn}$$ with $$\mathrm{$$CuSO_4$$} to $$produce $$\mathrm{Cu}$$ and $$\mathrm{$$ZnSO_4$$}$$

Question 9

Which of the following statements about strong electrolytes is correct?

Accepted Answer

They completely dissociate into ions in water.

Question 10

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

Accepted Answer

$$\mathrm{$$MnO_4$$^-}$$

Question 11

A student mixes $$\mathrm{Pb(NO_3$)_2}$$ and $$\mathrm{KI} in $$water. Which precipitate forms?

Accepted Answer

$$\mathrm{$$PbI_2$$}$$

Question 12

Which of the following is the correct net ionic equation for the neutralization of $$\mathrm{$$HNO_3$$}$$ with $$\mathrm{KOH}$$?

Accepted Answer

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

Question 13

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

Accepted Answer

$$\mathrm{$$CrO_4$$^{2-}}$$

Question 14

Which of the following pairs will NOT produce a precipitate when mixed in aqueous solution?

Accepted Answer

$$\mathrm{$$KNO_3$$}$$ + $$\mathrm{NaCl}$$

Question 15

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

Accepted Answer

$$\mathrm{S_2O_8$$^{2-}$$}$$

Question 16

A solution contains $$\mathrm{0.50\ M}$$ $$\mathrm{Na_2SO_4}$$ and $$\mathrm{0.50\ M}$$ $$\mathrm{Ba(NO_3$)_2}. $$What mass of $$\mathrm{$$BaSO_4$$} ($$molar mass = $$233.39\ \mathrm{g/mol}) $$will precipitate from $$100.0\ \mathrm{mL} of $$the mixture?

Accepted Answer

$$1.17\ \mathrm{g}$$

Question 17

Which of the following is a weak acid?

Accepted Answer

$$\mathrm{CH_3COOH}$$

Question 18

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

Accepted Answer

$$\mathrm{PO_4$^{3-}}$$

Question 19

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

Accepted Answer

$$\mathrm{Cr_2O_7$$^{2-}$$}$$

General Chemistry: Solutions, Acids & Bases, Atomic Structure, and Periodicity Study Guide

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