Calculate the mass of 0.25 mol of iron (mola | vedclass

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Question

(B) The formula to calculate mass is: $	ext{Mass} = 	ext{Number of moles} 	imes 	ext{Molar mass}$.Given: $	ext{Number of moles} = 0.25 \ mol$,$

Vedclass · Accepted Answer

$1.4 	imes 10^{-2} \ kg$

Vedclass · Answer

(B) The formula to calculate mass is: $	ext{Mass} = 	ext{Number of moles} 	imes 	ext{Molar mass}$.Given: $	ext{Number of moles} = 0.25 \ mol$,$	ext{Molar mass} = 56 \ g \ mol^{-1}$.$	ext{Mass} = 0.25 \ mol 	imes 56 \ g \ mol^{-1} = 14 \ g$.To convert the mass into kilograms: $14 \ g = 14 	imes 10^{-3} \ kg = 1.4 	imes 10^{-2} \ kg$.Therefore,the correct option is $B$.

Calculate the mass of $0.25 \ mol$ of iron (molar mass $= 56 \ g \ mol^{-1}$).

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