Question

how many atoms are there in 2.3 g of hydrogen?
PLEASE HELP!!!!!!!!!!!!!!

Answer 1

There are 6.8026 x10^23 atoms of Hydrogen when given 2.3g of Hydrogen. Here's how:
(Use the Mole triangle)

1-Divide 2.02g/mol (molar mass of diatomic element Hydrogen) by 2.3g.
2.3g/2.3g/mol = 1.1386 mol (approximate)

2-Multiply the aforementioned value by Avogadro's number:
1.13mol (6.02 x10^23) = 6.8026x10^23


Therefore, there are 6.8026x10^23 atoms in 2.3g of Hydrogen!

Answer 2

I'm sorry, for step 1), it should be "2.3g/2.02g/mol".