Question

no of moles in 20g of water

Answer 1

moles. 20 g.

h2 o. 18 u

moles. 20÷18.

1.1 moles

Answer 2

Molar mass of H = 1 

Molar mass of O = 16 

Molar mass of C = 12 

Molar mass of Water = H20 = 2*1+16 = 18 g/mol 

So, 1 mole of water weighs = 18 g 

which implies, 18g of water = 1 mole 

THerefore, 20g of water = 20/18 = 1.11 mole 

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