Question

calculate no. of moles in 65.6 micrograms of carbon

Answer 1

65.6 micrograms =65.6/10³g
molar mass of C=12g
moles = 65.6÷(10³×12)=5.47*10^-3mol

Answer 2

Answer:  $=5.467\times 10^{-6}$ moles

Step-by-step explanation:

Since,

$\text{The number of moles}=\frac{\text{ Mass}}{\text{ Molecular mass}}$

Here, the mass of the carbon = 65.6 microgram = $65.6\times 10^{-6}$

And, the molecular mass of the carbon = 12 gram,

Thus,

$\text{The number of moles}=\frac{65.6\times 10^{-6}}{12}$

$=5.467\times 10^{-6}$ moles