Given
Weight of pottasium fluoride (KF) = 29 gms
To find
Number of moles of pottasium fluoride = ?
Solution
we know that molar mass of KF = 58.0967 g
Now,
[tex]number \: of \: moles = \ \\ \frac{given \: weight \: of \: subtance}{molar \: mass} [/tex]
Number of moles = 29/58 = 0.5 moles
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