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Worksheets% composition
Total questions: 10
Worksheet time: 5mins
What is the % composition of Oxygen in the following sample of water?
The sample contains 4.4 g of oxygen and 0.6 g of Hydrogen.
88%
12%
14%
7.3%
What is the % composition of Hydrogen in the following sample of water?
The sample contains 4.4 g of oxygen and 0.6 g of Hydrogen.
88%
12%
14%
7.3%
A sample of a gaseous compound has the following masses of elements when analyzed:
The sample contains 149.74 g of Carbon and 50.26 g of Hydrogen.
Butane is a gas that contains 82.66% Carbon and 17.34% Hydrogen. Could this sample be butane gas and what is the % composition of Hydrogen in your sample?
Yes, there is 17.34% Hydrogen in the sample.
Yes, there is 82.66% Hydrogen in the sample.
No, there is 25.13% Hydrogen in the sample.
No, there is 74.87% Hydrogen in the sample.
A sample of a gaseous compound has the following masses of elements when analyzed:
The sample contains 123.99 g of Carbon and 26.01 g of Hydrogen.
Butane is a gas that contains 82.66% Carbon and 17.34% Hydrogen. Could this sample be butane gas and what is the % composition of Carbon your sample?
Yes, there is 17.34% Carbon in the sample.
Yes, there is 82.66% Carbon in the sample.
No, there is 25.13% Hydrogen in the sample.
No, there is 74.87% Carbon in the sample.
Determine the mass ratio of Oxygen to Carbon in Compound A.
Compound A: 12.01 g of Carbon and 16.00 g of Oxygen.
4/4
3/4
4/3
2/1
Determine the mass ratio of Oxygen to Carbon in Compound B.
Compound B: 12.01 g of Carbon and 32.00 g of Oxygen.
3/3
4/3
8/3
1/4
How much more Oxygen does Compound B have than Compound A?
1/2X
3X
2X
4X
What could be the formula for Compound A?
NO
CO
NO2
CO2
What could be the formula for Compound B?
NO
CO
NO2
CO2
Which image represents a molecule of methane, CH4?
