Formaldehyde formed during the oxidation of 1.5 mol of methanol was dissolved in 200 g
| March 28, 2021 | education
Formaldehyde formed during the oxidation of 1.5 mol of methanol was dissolved in 200 g of water. Calculate the mass fraction of formaldehyde in this solution.
1) Methanol is completely oxidized to formaldehyde, therefore n (CH3OH) = n (CH2O) = 1.5 mol;
2) The molar mass of formaldehyde M = 30 g / mol, we calculate the mass of formaldehyde, it is equal to 45 g;
3) We calculate the mass fraction of formaldehyde in the water solution, it is equal to 18.4%
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