Question

Calculate the mass 3.011 × 10^ 24 atoms of carbon

Answer 1

refer the attachment

Answer 2

Answer : The mass of $3.011\times 10^{24}$ atoms of carbon is, 60 g

Solution : Given,

Number of carbon atoms = $3.011\times 10^{24}$

Molar mass of carbon = 12 g/mole

First we have to calculate the moles of carbon atom.

As, $6.022\times 10^{23}$ atoms of carbon present in 1 mole of carbon

So, $3.011\times 10^{24}$ atoms of carbon present in $\frac{3.011\times 10^{24}}{6.022\times 10^{23}}=5$ moles of carbon

Now we have to calculate the mass of carbon atom.

$\text{Mass of C}=\text{Moles of C}\times \text{Molar mass of C}$

$\text{Mass of C}=(5moles)\times (12g/mole)=60g$

Therefore, the mass of $3.011\times 10^{24}$ atoms of carbon is, 60 g