0.0075 mole of calcium trioxocarbonate (IV) is added to 0.015 mole of a solution of hydrochloric acid. The volume of gas evolved at s.t.p is?
[Molar volume of a gas at s.t.p = 22.4 dm3]

Charlieboi200

9 years ago

see you know the question said the volume of gas evolved. if caco3 react with HCl you will get co2 h2o and cacl. but caco3 needs two moles of hcl. if you balance the equation u notice that since one mole of caco3 reacted with 2 moles of HCl to give one mole of co2 gas. then

since 1 mole=22.4dm3

0.0075 mole= ?

cross multiply 0.0075 mole*22.4dm3/1

equal to 168

Hydrocarbon1

6 years ago

CaCO3 + 2HCl---->CaCl2 + CO2 + H2O
as u can see the gas CO2 which elvoled was gotten from CaCO3 so we use the number of moles of CaCO3 only

1mole of gas at STP = 22.4dm3
1mole of CaCO3 i.e 0.0075=x
Cross multiply
x=0.0075 x 22.4
x=168

osasiyenemo

5 years ago

more of the explanation on chemistry

tovia eigbadon

10 years ago

Pls let more explanation on subject like physics biology and chemistry

Ibraahiim

1 year ago

and what's 0.0015 for?

Pando13

1 year ago

I need more questions

Eyaketoro

7 years ago

I dnt understand the solving

umaisha

4 years ago

NOTHING OOO

CHRIST IS KING

3 months ago

correct

Nnabuike Elizabeth

10 years ago

what is the formula for this

dhorxcas

10 months ago

8b h7thn