Calculate the mass of water with an amount of a substance of 5 mol?

v – amount of substance
m is the mass of the substance
Mr – molecular weight

Given: v (water) = 5 mol.

To find the mass of a substance, you must use the formula m = v * Mr.
The Mr of water is 18 g / mol (Mr = Mr (2H) + Mr (O) = 2 + 16 = 18).

m water = 5 * 18 = 90 g.

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