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calculate the no. of moles : (a) 392 g of H2SO4. (b) 44.8 L of CO2. (c) 9 g Al. (d) 25 g CaCo3.

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Can you try it once??
let me c

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Other answers:

Find molecular mass of H2SO4 then use molar mass concept..
no of moles in 392 g of H2SO4 = x
am not getting !
you better teach !
See: Find molecular mass of H2SO4..
we got that in the first problem :)
1 mole = 98 g Right using molar mass..
then ?
98 g = 1 mole Find it for 392 g..
392 * 1 / 98 = 4 moles correct ?
98*4 = 392 I think..
Yep you are right..
c and d are same so lets leave it
i'll do it on my own :)
For b: 22.4 L = 1 mole Find it for 44.8 L.
how to do b ?
1 * 44.8 /22.4 = 2 moles
Now do here all the three left and I am going to have bath.. While teaching you I forgot to take bath today.. Yes 2 moles is right @ashna Now try other two till then I am having bath..
okay teacher :P
I am here only.. So I will check them when I will come.. So don't worry...
thank you teacher :)
am done :D
ll cum in the evening .. thanks for the help :)
or in the afternoon :D
Medal for c and d part.. You have calculated them very correctly..
thank yu :)

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