dtenglish dtenglish
  • 21-02-2018
  • Chemistry
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how many molecules of h2o are equal to 97.2 g h2o

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Dejanras
Dejanras Dejanras
  • 02-03-2018
m(H₂O) = 97,2 g.
n(H₂O) = m(H₂O) ÷ M(H₂O).
n(H₂O) = 97,2 g ÷ 18 g/mol.
n(H₂O) = 5,4 mol.
N(H₂O) = n(H₂O) · Na.
N(H₂O) = 5,4 mol · 6,023·10²³ 1/mol.
N(H₂O) = 3,25·10²⁴ molecules of water.
n - amount of substance.
Na - Avogadro number.
Answer Link
lmfdkma lmfdkma
  • 03-04-2020

Answer:

3.25*10^24

Explanation:

Answer Link

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