Oxalic acid contains 26.67% C, 2.22% H, and 71.11% O and has a molar mass of about 90 g. What is the molecular formula of oxalic acid? Express your answer as a chemical formula.
Added by Sara M.
Step 1
First, we need to find the moles of each element in 100 g of oxalic acid. For carbon (C): moles of C = (26.67 g) / (12.01 g/mol) = 2.22 mol For hydrogen (H): moles of H = (2.22 g) / (1.01 g/mol) = 2.20 mol For oxygen (O): moles of O = (71.11 g) / (16.00 Show more…
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Oxalic acid is a toxic substance used by laundries to remove rust stains. Its composition is $26.7 \% \mathrm{C}, 2.2 \% \mathrm{H}$, and $71.1 \% \mathrm{O}$ (by mass), and its molecular mass is 90 amu. What is its molecular formula?
Oxalic acid is a toxic substance used by laundries to remove rust stains. Its composition is $26.7 \% \mathrm{C}, 2.2 \% \mathrm{H},$ and $71.1 \% \mathrm{O}$ (by mass), and its molecular weight is 90 amu. What is its molecular formula?
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