How can you solve mass to mass stoichiometry problems?
Answers
Answer:
Quite simple. Oxygen is a homo nuclear diatomic molecule, which means it consists of two atoms of the same element. By simply adding together the relative atomic masses of the element that makes up an oxygen molecule (which is two oxygen atoms), it will give you the molar mass. So the relative atomic mass of oxygen is 16.00, and because an oxygen molecule consists of two atoms of oxygen, you would just multiply this number by 2, and that is your answer. 32 g/mol.
So this states that for every 32g of oxygen gas, there would be approximately 6.02 x 10^23 O2 molecules.
Answer:
There are four steps involved in solving these problems:
Make sure you are working with a properly balanced chemical equation.
Convert grams of the substance given in the problem to moles.
Construct two ratios - one from the problem and one from the chemical equation and set them equal.