I assume you are talking about 100% H2O2. Technically there is no such thing but we will play like we can make 100% stuff. I bought some 90% stuff once and used it for some experiments. It's rough stuff.
mass = volume x density
mass = 350 mL x 1.45 g/mL = 507.5 g
mols H2O2 in 507.5 g = 507.5/34.01 = 14.9 mols.
There are 6.02E23 molecules in a mol of molecules........so you can convert.
The density of hydrogen peroxide, H2O2, is 1.45 g/mL. How many molecules of H2O2 are in 0.350 L of hydrogen peroxide?
The molar mass of H2O2 is 34.01 g/mol.
1 answer
2 answers