Question

determine the no. of atoms in 112 ml of n2 gas at stp

Answer 1

Answer:

6.023×10²²

Explanation:

step one weight the sample

here volume is given now 1ml of water is 1 gm

and 112 ml of nitrogen is 0.14 g

step two look  up for the molar mass it is 14g/mol

step three divide weight by molar mass it is 0.14/14 which is 0.1 mol

multiply by Avogadro's number which is  6.023×10²³

0.1 × 6.023×10²³ =6.023×10²²