What mass of water contains as many molecules as 36 g of magnesium.
| January 7, 2021 | education
It is necessary to find the amount of a substance contained in a known mass of magnesium, and then find the mass of water that will contain the same amount of substance.
The molar mass of magnesium is 24 grams / mol.
N Mg = 24/36 = 0.666 mol;
Let’s determine the mass of water containing the same amount of substance.
The molar mass of magnesium is 18 grams / mol.
m H2O = 0.666 x 18 = 11.988 grams.
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