Question

calculate the no. of moles present in 4.68 mg of silicon​

Answer 1

Answer:

Molar Mass of Silicon = 28.0855 g

Number of moles = Given mass / Molar mass

n = 4.68 / 28.08

n = 0.16

Number of moles Present in 4.68 g of Silicon is 0.16

Answer 2

Answer:

4.68 mg of Silicon=4.68x10^-3 g of Silicon

(atomic mass of silicon=28.1)

mole of silicon=mass of silicon/atomic

mass of silicon

=4.68x10^-3/28.1

=1.66x10^-3

Plz Mark It As Brillianist