Formula mass / Formula weight / Molecular mass / Molecular weight of H2O = (1*2) + 16 = 18g
1 mol of H2O = 18g H2O
1 mol of H2O = 6.023 * 10^23 molecules
In 18g H2O there are 6.023 * 10^23 molecules.
So,
In 1g H2O there are (6.023 * 10^23) / 18 molecules = 3.346 * 10^22 molecules
Therefore,
In 7.3g H2O there are (3.346 * 10^22) * 7.3 molecules = 2.443 * 10^23 molecules
Ans: 2.443 * 10^23 molecules
7.2 grams H2O (1 mole H2O/18.016 grams)(6.022 X 1023/1 mole H2O)
= 2.4 X 1023 molecules of water
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237 grams CCl4 (1 mole CCl4/153.81 grams)(6.022 X 1023/1 mole CCl4)
= 9.28 X 1023 molecules of carbon tetrachloride
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4267
1 mole H2O = 6.022 x 1023 molecules H2O 2mol H2O x 6.022 x 1023 molecules H2O/1mol H2O = 1 x 1024 molecules H2O
3.34E22
1.758E24
0.943 moles H2O (6.022 X 1023/1 mole H2O) = 5.68 X 1023 molecules of water ========================
The number of molecules is 2,308.10e23.
no H2O molecules are produced:)
1 mole H2O = 6.022 x 1023 molecules H2O 2mol H2O x 6.022 x 1023 molecules H2O/1mol H2O = 1 x 1024 molecules H2O
3.34E22
1.758E24
There is one water molecule in H2O
0.943 moles H2O (6.022 X 1023/1 mole H2O) = 5.68 X 1023 molecules of water ========================
The number of molecules is 2,308.10e23.
1 mole H2O = 6.022 x 1023 molecules 0.357mol H2O x 6.022 x 1023 molecules/mol = 2.15 x 1023 molecules H2O
1.08x10^22
A lot
1 mole H2O = 18.015g H2O = 6.022 x 1023 molecules H2O 1.5 x 1023 molecules H2O x 18.015g H2O/6.022 x 1023 molecules H2O = 4.5g H2O
200 grams H2O (1 mole H2O/18.016 grams)(6.022 X 1023/1 mole H2O) = 6.69 X 1024 molecules of water ======================