Answer :
Final answer:
To convert 5.00 moles of H2O to grams, multiply the number of moles by the molar mass of water, which is 18.015 g/mol, resulting in 90.075 grams.
Explanation:
To convert 5.00 moles of H2O to grams, we use the molar mass of water as a conversion factor. The molar mass of H2O is calculated by adding the molar masses of hydrogen and oxygen together, which are approximately 1.0079 g/mol for hydrogen and 15.999 g/mol for oxygen.
Thus, the molar mass of H2O is:
(1.0079 + 1.0079 + 15.999) = 18.015 g/mol.
Now, to find the mass in grams of 5.00 moles of water, we multiply the number of moles by the molar mass:
5.00 moles × 18.015 g/mol = 90.075 grams
Therefore, 5.00 moles of water is equivalent to 90.075 grams.
