Question

calculate number of moles in 392g of H$2$SO$4$

Answer 1

Hey friend,, ☺️ here is your answer ___________________________

Given mass of H2SO4 = 392 g
Molar mass of H2SO4 = 2*1 + 32 + 4*16 = 2 + 32 + 64 = 98 g

As we know,
Number of moles = given mass / Molar mass = 392g / 98g = 4 moles


Hope this helps you..

Answer 2

Hey !!!

392 g of H2SO4

molar weight of H2SO4 = 2 + 32 + 16× 4

=> 2 + 32 + 64 = 98g/mole

We know that , mole = mass / molar weight

=> 392g / 98g/mole

hence, no. of mole = 4 mole .

__________________________

Hope it helps you !!!

@Rajukumar111