Question

How many moles of gold are equivalent to 1.204 × 1024 atoms?

Answer 1

How many moles of gold are equivalent to 1.204 × 1024 atoms?

0.2

0.5

2 CORRECT ANSWER

5

C) 2 Is the correct answer, I took the test and it was correct.

Answer 2

Explanation:

It is known that the value of Avogadro's number is $6.022 \times 10^{23}$.

Therefore, calculate moles of gold atoms as follows.

    Moles of gold atom = $\frac{given number of atoms}{Avogadro's number}$

                                    = $\frac{1.204 \times 10^{24}}{6.022 \times 10^{23}mol^{-1}}$

                                    = $0.199 \times 10$ mol

                                    = 1.99 mol

Thus, we can conclude that 1.99 mol of gold atoms are equivalent to $1.204 \times 10^{24}$ atoms.