find the number of moles in 7g of Na
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Answered by
159
number of moles= (given weight)/( molecular weight)
molecular weight of sodium, Na = 23 g
so, number of moles of Na = 7/23 =0.30
if it is nitrogen , N , then molecular weight =14 g
number of moles = 7/14 = 0.5
molecular weight of sodium, Na = 23 g
so, number of moles of Na = 7/23 =0.30
if it is nitrogen , N , then molecular weight =14 g
number of moles = 7/14 = 0.5
Answered by
71
Given Mass = 7 g.
Molar mass = 23 g.
We know that ;
To find the number of moles, we divide Given Mass by the molar mass.
No of moles = Given Mass / molar mass.
No of moles = 7 / 23
No of moles = 0.30 moles.
Molar mass = 23 g.
We know that ;
To find the number of moles, we divide Given Mass by the molar mass.
No of moles = Given Mass / molar mass.
No of moles = 7 / 23
No of moles = 0.30 moles.
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