23.0 mL of a NaCl solution that has a mass of 24.57 g is placed in an evaporating dish and evaporated to dryness. The residue has a mass of 2.19 g. What is the Molarity (M) of the solution?
Select one:
a. 0.00163 M
b. 0.0375 M
c. 0.0891 MÂ
d. 0.0952 M
e. 1.64 M
Â
A 4.7% (m/v) CuSO4Â solution has a volume of 57.4 mL. How many grams of CuSO4Â are in the sample?
Select one:
a. 0.082 g
b. 8.2 gÂ
c. 820 g
d. 0.27 g
e. 2.70 g
Â
How many grams of a 28.0% (m/m) CuSO4 solution contain 39.0 g CuSO4?
Select one:
a. 0.718 g
b. 71.8 g
c. 139 g
d. 109 gÂ
e. 10.9 g
Â
A solution has a pH of 6.4 This solution is
Select one:
a. Acidic
b. Basic
c. NeutralÂ
Â
An acid will react with Litmus (Hydrion paper) turning it
Select one:
a. White
b. BlueÂ
c. Red
d. Colorless
Â
Baking soda and ammonia, common household cleaners, are
Select one:
a. Acidic
b. Basic
c. NeutralÂ
Â
pH is defined as
Select one:
a. The negative log of the molarityÂ
b. The positive log of the molarity
c. The negative log of H+ concentration
d. The positive log of H+ concentration
Answers
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Posted 15 May 2017 03:05 AM
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