Determine the number of atoms in 25.0 grams of bromine, Br. (The mass of one mole of bromine is 79.90 g.)

Question

asked Oct 19, 2024 165k views

1 Answer

Sindre Myren · Answer 1 · 2024-10-26T13:27:59+0000

Answer: 1,88×10²³ atoms of Br in 25g of Br

Step-by-step explanation:

25g Br

1 mol of Br =79,9g Br

Number of Avogadro: 6,022×10²³ = 1 mol

25gBr× 1molBr/79,9gBr =

6,022×10²³ atoms of Br/1 mol Br =

1,88×10²³ atoms of Bromine