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anonymous
 3 years ago
What is the mass (in grams) of one molecule of H2O? Express your answer using scientific notation with two decimal places.
anonymous
 3 years ago
What is the mass (in grams) of one molecule of H2O? Express your answer using scientific notation with two decimal places.

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anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0do you know avagadro's number?

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0ok do you know the mass number of H2O? if we have a mole of molecules, the total mass is the value of the mass numbers in grams ex. a mole of helium atoms would be 4g so if we wanted to determine the mass of a single helium atom in grams, we could just divide 4g by avagadro's number

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0mol of O 16g mol of 2H 2g mol of H20 18g
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