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evablogger [386]
3 years ago
6

Calculate the number of molecules in 9.00 moles H2S.

Chemistry
2 answers:
kotegsom [21]3 years ago
8 0

Answer:

5.42 x 10²⁴

Explanation:

There is a number called Avogrado's constant, and this constant is:

6.022 x 10²³

The reason that this number is so important in chemistry calculations, is that it is the exact number of atoms in a mole of that substance.

<u>Calculations:</u>

No. of molecules = (Avogrado's constant) x n  (where n is the moles)

No. of molecules = (6.022 x 10²³) x (9 moles)

No. of molecules = 5.42 x 10²⁴

Alex Ar [27]3 years ago
3 0
1 mole of any substance is: 6.022*10²³ atoms or molecules.
9 moles of H₂S=9(6.022*10²³ molecules)=5.4198*10²⁴ molecules.

answer:there are 5.4198*10²⁴ molecules in 9.00 moles of H₂S. 


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