c0ff1n
c0ff1n
17-03-2021
Chemistry
contestada
how many molecules are in 45.0 g of water
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ericksan861
ericksan861
17-03-2021
1.5055*10²³
Given mass = 45g
Molar mass of H2O = 2+16 = 18g
Moles = Given mass/Molar mass
= 45/18 = 2.5moles
No of molecule in 1 mole = 6.022*10²³
No of molecue in 2.5 mole = 2.5*6.022*10²³
= 1.5055*10²³
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