How many molecules of sugar C12H22O11 are in a teaspoon of sugar weighing 5 g

univerkov | November 17, 2020 | education

The amount of substance (moles) is calculated by the formula n = m / M
We have 5 g
The molar mass of sucrose is:
12 * 12 + 22 * 1 + 11 * 16 = 342.
n = 5/342 = 0.0146 mol
Number of molecules N = 0.0146 mol * 6.02 * 10 ^ 23 molecules / mol = 8.79 * 10 ^ 21 molecules

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