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h20h
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I have figured this out
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The molecular mass of a compound is calculated by adding the atomic masses of all the atoms present in the compound. In the case of oxalic acid, the molecular formula is C2H2O4, so you would add the atomic masses of 2 carbon atoms, 2 hydrogen atoms, and 4 oxygen atoms to get the molecular mass.
The atomic mass of oxalic acid is the sum of the atomic masses of its constituent atoms, which can be found on the periodic table. The atomic mass of carbon is 12.01 g/mol, hydrogen is 1.01 g/mol, and oxygen is 16.00 g/mol. Therefore, the atomic mass of oxalic acid is 2(12.01) + 2(1.01) + 4(16.00) = 90.03 g/mol.
Oxalic acid is a diprotic acid, meaning it can donate two protons (H+) in solution. To account for this, you must double the number of hydrogen atoms in the molecular formula when calculating the molecular mass. In this case, you would add the atomic mass of 2 carbon atoms, 4 hydrogen atoms, and 4 oxygen atoms to get the molecular mass.
No, the molecular mass of a compound is a fixed value and does not vary. However, the molecular weight (measured in grams) may vary depending on the mass of the sample being measured.
To convert the molecular mass to moles, divide the given mass (in grams) of oxalic acid by its molecular mass (in grams per mole). This will give you the number of moles of oxalic acid in the sample.