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Rashid [163]
3 years ago
15

How many molecules of H2O are there in 1.0 g of H2O?

Chemistry
1 answer:
NISA [10]3 years ago
8 0
Molar mass H₂O = 18.0 g/mol

number of moles :

1.0 / 18.0 => 0.055 moles

1 mole -------------- 6.02 x 10²³ molecules
0.055 moles --------  ? molecules

molecules = 0.055 x ( 6.02 x 10²³) / 1

molecules = 3.311x10²² / 1

= 3.311 x 10²² molecules

hope this helps!
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7 0
3 years ago
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6 0
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Read 2 more answers
Under identical conditions, separate samples of O2 and an unknown gas were allowed to effuse through identical membranes simulta
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Answer:

147.2g

Explanation:

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