Review 1 II Semester Final Chemistry Honors
Gases (Chap 10)
Gas Stoichiometry ( Chap 11)
Solutions ( Chap 13)
Colligative Properties and Solubility Rules (Chap 14)
1. Convert 7.58 atm to k Pa (1 atm = 101.3 k Pa)
(a)(a)13.4 k Pa
(b)(b)767.854 k Pa
(c)(c)768 k Pa
(d)(d)0.0748 k Pa
2.What is the volume of an ideal gas at – 273.15º C?
(a)(a)0.0000 L
(b)(b)22.41 L
(c)(c)273 L
(d)(d)Some other value
3. 50.0 gm of KClO3 (F.W. 127 gm/mol) is completely decomposed according to the following equation
2KClO3 (s) → 2KClO3 (s) + 302 (g)
and the gas liberated is collected over water at 25.0º C and 755 torr. Calculate the volume of the gas collected (the vapor pressure of water at 25º C is 24 torr).
(a)(a)150 L
(b)(b)15.0 L
(c)(c)144 L
(d)(d)14.4 L
4.Under the same experimental conditions, which of these three gases effuses most rapidly: He, H2, CO2?
(a)(a)He
(b)(b)H2
(c)(c)CO2
(d)(d)Don’t know
5.How many milliliters of a 0.200 M solution contain 0.0100 moles of solute?
(a)(a)25.0 mL
(b)(b)500 mL
(c)(c)50 mL
(d)(d)10.0 mL
6. 25.0 mL of a 0.100 M aqueous is diluted to 5.00 L with water. What is the concentration of the resulting solution?
(a)(a)0.0200 M
(b)(b)0.0500 M
(c)(c)5.00 x 10-4M
(d)(d)5.00 x 10-3M
7.What is the total concentration of ions in 0.1 M (NH4)2SO4?
(a)(a)0.1 M
(b)(b)0.2 M
(c)(c)0.3 M
(d)(d)0.0 M
8. Which of these solutions has the lowest freezing point: 0.050 m CaCl2, 0.15 m NaCl, 0.10 m HCl, 0.10 m C12H22O11?
(a)(a)0.05 m CaCl2
(b)(b)0.15 m NaCl
(c)(c)0.10 m HCl
(d)(d)0.10 m C12H22O11
9. Colloidal particles are
(a)Smaller than common solute molecules
(b)Larger than common solute molecules
(c)Smaller than common solvent molecules
(d)Usually about 5 Å in diameter
10.A suspension of a liquid in a gas is called
(a)A foam
(b)A sol
(c)An emulsion
(e)An aerosol
11. A solution that contains 55.0 g of ascorbic acid (Vitamin C) in 250 g of water freezes at –2.34C. Calculate the molar mass (g/mol) of the solute.
Kf = 1.86C/m. 175
12. Consider the solution reaction AlCl3 + 3AgNO3 3AgCl + Al(NO3)3. What volume of 0.100 M AlCl3 will exactly react with 55.0 mL of 0.162 M AgNO3?
29.7
13. What is the correct NET IONIC equation for the neutralization of acetic acid with Ca(OH)2?
14. Solutions of BaCl2(aq), Na2SO4(aq) and KNO3(aq) are mixed together. What compound is likely to precipitate from the solution?
15. Is the following equation is an example of a net ionic equation?
Na+ + Br– + Ag+ + NO3– AgBr(s) + Na+ + NO3–