QUIZ 5 - Chem 10 - Dr. Kline - Answers

QUIZ 5A

Chemistry 10 - Dr. Kline

March 28, 2001

1.  3 points Write the correct formulas with state labels for the products of each of the following reactions. It is safe to assume that both reactions occur. You do not need to balance the equations.

a.    AgNO₃(aq) + K₂CO₃(aq) ---> NaNO₃(aq) + Ag₂CO₃(s)

b.    KOH(aq) + H₃PO₄(aq) ---> H₂O(l) + K₃PO₄(aq)

2.  3 points Calculate the formula mass of Ca(ClO₃)₂ .

3.  4 points How many atoms of zinc are in a 63.6 g sample of this metal?

QUIZ 5B

Chemistry 10 - Dr. Kline

March 28, 2001                                                 

1.  3 points Write the correct formulas with state labels for the products of each of the following reactions. It is safe to assume that both reactions occur. You do not need to balance the equation.

a.    AgNO₃(aq) + K₃PO₄(aq) ---> KNO₃(aq) + Ag₃PO₄(s)

b.    LiOH(aq) + H₂SO₄(aq) ---> H₂O(l) + Li₂SO₄(aq)

2.  3 points Calculate the formula mass of (NH₄)₂S.

3.  4 points How many atoms of chromium are in a 65.4 g sample of this metal?

QUIZ 5C

Chemistry 10 - Dr. Kline

March 28, 2001                                                 

1.  3 points Write the correct formulas with state labels for the products of each of the following reactions. It is safe to assume that both reactions occur. You do not need to balance the equations.

a.    Cu(NO₃)₂₍aq) + NaOH (aq) ---> Cu(OH)₂₍s) + NaNO₃ (aq)

b.    Na₂S(aq) + HNO₃(aq) ---> H₂S(g) + NaNO₃(aq)

2.  3 points Calculate the formula mass of Fe(NO₃)₃.

3.  4 points How many atoms of copper are in a 52.0 g sample of this metal?