Conceptual Chemistry Final Exam Review (Part 3): Question Preview (ID: 15178)


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Which is the molar mass of the element Calcium?
a) 20 g/mol b) 39.1 g/mol c) 40.1 g/mol d) 20.2 g/mol
Which is the correct molar mass for the compound FeSO4?
a) 103.9 g/mol b) 151.9 g/mol c) 415.4 g/mol d) 247.9 g/mol
Which is the percent composition of bromine in the compound NaBr?
a) 81.6% b) 79.9% c) 84.1% d) 77.7%
Which term is described as the lowest whole-number ratio of elements in a compound?
a) hydrate b) molecular formula c) empirical formula d) percent composition
In which sample are there more atoms present: 15 g of magnesium (Mg) or 15 g of manganese (Mn)?
a) Mg b) Mn c) Both contain same number of atoms d) Neither
How many molecules are in 3.6 grams of NaCl?
a) 0.06 b) 1.0 X 10^21 c) 1.3 x 10^26 d) 3.7 x 10^22
What is the chemical formula a compound with an empirical formula of C4H3O and a molar mass of 268 g/mol?
a) C16H12O4 b) C6H10O8 c) C22H22N4O2 d) C12H12N12O12
What is the volume of 0.6 mol of nitrogen at 74.2 kPa and 85ÂșC?
a) 17.1 L b) 19.3 L c) 22.8 L d) 24.1 L
Atoms form bonds in such a way as to produce the electron configuration of a noble gas.
a) True b) False c) d)
In general, the vast majority of ionic compounds are liquids at room temperature.
a) True b) False c) d)
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