Question

How many moles of Cobalt are in 27.4 grams of cobalt

Answer 1

0.4649331785818406 is what 27.4 grams is converted to! You're welcome!! :) 

Answer 2

Number of moles of cobalt can be calculated as given mass of the substance divided by the molar mass of the substance.

Here, given mass of the cobalt = 27.4 g

Molar mass of the cobalt = 58.9 g

Number of moles of a substance= \frac{Given mass of the substance}{Molar mass of the substance}

Number of moles of cobalt= \frac{Given mass of the cobalt}{Molar mass of the cobalt}

=\frac{27.4}{58.9}

=0.465 mol

So, number of moles of cobalt will be 0.465 mol