Question

what is the total number of molecules of hydrogen in 0.25 mole of hydrogen

Answer 1

Answer:

number of mole s of H2 =0.25 moles

number of molecules = moles *Avogadro`Number

number of molecules = 0.25×(6.022×10 ^23)

number of molecules = 1.505×10 ^23

single molecule of hydrogen contains two H-atoms. So,

number of atoms = 2×(1.505×10 ^23)

= 3.01×10^23