The mass of a hydrogen atom is 1.67 × 10-24 grams.
The mass of a carbon atom is 1.99 × 10-23 grams.
A molecule of methane contains 4 atoms of hydrogen and 1 atom of carbon.
a) Calculate the mass of one molecule of methane
Give your answer in standard form.
b) Calculate the number of molecules in 1 gram of methane.
Give your answer in standard form to 3 significant figures.


The Mass Of A Hydrogen Atom Is 167 1024 Grams The Mass Of A Carbon Atom Is 199 1023 Grams A Molecule Of Methane Contains 4 Atoms Of Hydrogen And 1 Atom Of Carbo class=