calculate the numbers of moles in 12g of oxygen
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molecular mass of oxygen , m = 32g
we know that 32 g of oxygen contain = 1 mole
so ,
1 g of oxygen contain = 1/32 moles
so,
12 g of oxygen contain = 12*1/32
= 3/8 moles
or. 0.375 moles
we know that 32 g of oxygen contain = 1 mole
so ,
1 g of oxygen contain = 1/32 moles
so,
12 g of oxygen contain = 12*1/32
= 3/8 moles
or. 0.375 moles
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