WorksheetsQUIZ 10- A Percent Comp and Emp/Mol Formulas
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
Which of the following definitions correctly describes percent composition?
a)
Percent by mass of the compound water
b)
Percent by atoms of each individual elements within a compound
c)
Percent by mass of each individual elements within a compound
d)
Percent by atoms of the compound water
2.
Which of the following correctly shows the percent composition of chloride in the compound SrCl2(strontium chloride)?
a)
63.9% of chloride
b)
44.8% of chloride
c)
36.5% of chloride
d)
26.2% of chloride
3.
Which of the following correctly shows the percent composition of calcium in the compound CaCl2(calcium chloride)?
a)
26% of calcium
b)
36% of calcium
c)
46% of calcium
d)
56% of calcium
4.
How many grams of carbon would be in would be in a bag of 500 grams of sugar if its formula is the one shown?
a)
211 g
b)
365 g
c)
421 g
d)
500 g
5.
How many grams of oxygen would be in would be in a bag of 1000 grams of sugar if its formula is the one shown?
a)
515 g
b)
615 g
c)
700 g
d)
800 g
6.
Which of the following is an example of an empirical formula?
a)
b)
c)
d)
7.
The empirical formula of a compound is CH4. The molecular formula of the compound could be....
a)
b)
c)
d)
8.
Which of the following correctly matches an empirical formula to its molecular formula?
a)
b)
c)
d)
9.
Which of the following could be an empirical formula?
a)
b)
c)
d)
10.
Which of the following formulas is an empirical formula?
a)
b)
c)
d)
100 %
