Question

How many moles of H2SO4 do you have if there are 1.64x10^22 molecules of H2SO4

Answer 1

0.027 moles of
`H_(2) S_{} 0_(4)` if there are 1.64x
`10^(22)` molecules of
`H_(2) S_{} O_(4)`

Step-by-step explanation:

Data given:

number of molecules of
`H_(2) S_{} 0_(4)` = 1.64 X
`10^(22)`

Atomic weight of the sulphuric acid = 98.07 grams/mole

We know that 1 mole of sulphuric acid has 6.022 x
`10^(23)` (Avagadro number) molecules.

so number of moles present in 1.64 X
`10^(22)` molecules is given by:

so to get moles we will use

number of moles =
`(number of molecules given)/(avagadro number)`

number of moles =
`(1.64 X 10^(22) )/(6.022 X 10^(23) )`

number of moles = 0.027 moles

So, 1.64 X
`10^(22)` molecules will be there in 0.027 moles of sulphuric acid.