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KengaRu [80]
3 years ago
7

Help me ASAP !!!!!!! Please give me some qestions for calculating number of moles

Chemistry
1 answer:
Leya [2.2K]3 years ago
3 0
If your talking about mole. p



1 mole of water weighs 18 g

Therefore 0.5 mole of water weighs 9 g

According to Avagadro,

1 mol = 6.023 **10^23

atoms

So,

0.5 mol = 3.0115 **10^23

molecules of water

Each water molecule contains 2 hydrogen atoms .

Therefore

2** 3.00115**10^23

atoms of hydrogen are present in 9g of water

Answer:

The answer is

6.02⋅1023
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