Question

3.011x1022 atoms of an element weighs 1.15 gm. The atomic mass of the
element is
​

Answer 1

sorry I don't know iwill recommend google

Answer 2

$\frac{no. \: of \: atoms}{6.023 \times {10}^{23} } = \frac{weight}{mass \: weight} \\ \frac{3.011 \times {10}^{22} }{6.023 \times {10}^{23} } = \frac{1.15}{x} \\ 4.99 = \frac{1.15}{x} \\ x = 4.33mg$