4 Questions
According to the Law of Multiple Proportions, if two elements can combine to form more than one compound, the masses of one element that combine with a fixed mass of the other element are in the ratio of:
Small whole numbers
In the example given for the Law of Multiple Proportions, the masses of oxygen (16g and 32g) that combine with a fixed mass of hydrogen (2g) have a ratio of:
1:2
According to Gay Lussac's Law of Gaseous Volumes, the volumes of hydrogen and oxygen that combine to form water vapor have a ratio of:
2:1
Dalton's Atomic Theory states that atoms of the same element are _____.
All of the above
Test your understanding of molar mass and mass percent calculations using the example of ethanol. Calculate the mass percent of carbon, hydrogen, and oxygen in ethanol based on its molecular formula and molar mass.
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