Question

How many gram atom of oxygen are there in 0.16 mole of water?

Answer 1

We know that gram atoms = moles

Let ;

• n = number of moles
• W = given mass
• M = molar mass mass

Given ;

n(H2O) = 0.16 mol

Thus n(O) = number of O atoms in 1 molecule × n(H2O)

n(O) = 1× 0.16

= 0.16

Therefore there are 0.16 gram atoms of O or 0.16 moles of O .

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