Determine the number of molecules in 3 kg of water.
| December 23, 2020 | education
Let’s solve the formula for the number of molecules:
N = m * Na / M
Weight of water:
10 ^ (-3)
We get 1 mole:
Na = 6.02 * 10 ^ 23
Find out the molar mass of water:
18 * 10 ^ (-3) kg / mol
Substitute the numbers:
3.34 * 10 ^ 22 molecules
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