% Composition
Worksheet Ch.3: % Composition, Molarity, and Other Units for
Concentration
% Composition
1. Calculating % composition by mass (using experimental data)
a) A 3.65 g sample of NaF is found to consist of 2.00 g of Na and 1.65 g of F. Calculate
the percentage by mass (percentage composition).
b) A sample with a mass of 48.72 g is found to contain 32.69 g of zinc and the rest is
sulfur. What is the percentage composition?
Answers: 3
Chemistry, 22.06.2019 00:30
Asolution of sodium hydroxide was titrated against a solution of sulfuric acid. how many moles of sodium hydroxide would react with 1 mole of sulfuric acid?
Answers: 2
Chemistry, 22.06.2019 09:30
Mike and mitchell decide to have a foot race. they mark off a stretch of 100 yards, and recruit cindy to work the stopwatch. after running the race and looking at the results, cindy declared that mitchell was the fastest. so how did the boys times compare?
Answers: 3
Chemistry, 22.06.2019 13:00
The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false
Answers: 2
Worksheet Ch.3: % Composition, Molarity, and Other Units for
Concentration
% Composition
% Composition
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