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

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waterineyesBest ResponseYou've already chosen the best response.2
Can you try it once??
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Find molecular mass of H2SO4 then use molar mass concept..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
no of moles in 392 g of H2SO4 = x
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
See: Find molecular mass of H2SO4..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
we got that in the first problem :)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
1 mole = 98 g Right using molar mass..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
98 g = 1 mole Find it for 392 g..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
392 * 1 / 98 = 4 moles correct ?
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
98*4 = 392 I think..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Yep you are right..
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
c and d are same so lets leave it
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
For b: 22.4 L = 1 mole Find it for 44.8 L.
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
1 * 44.8 /22.4 = 2 moles
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
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..
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
I am here only.. So I will check them when I will come.. So don't worry...
 one year ago

ashnaBest ResponseYou've already chosen the best response.1
ll cum in the evening .. thanks for the help :)
 one year ago

waterineyesBest ResponseYou've already chosen the best response.2
Medal for c and d part.. You have calculated them very correctly..
 one year ago
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