Question

10 gm ofcaco3 are reacted with dilhcl. caco3 plus2h2o aerocacl2 plush2o plusco2.what mass ofcacl2.

Answer 1

Hello! Let me try to answer this :)

Note:
-) mole of Calcium Carbonate:
= m/Mr = 10/100 = 0.1 mole

Mr = molecular mass
Mr CaCO3 = 100 g/mol
Mr CaCl2 = 111 g/mol

Hope this will help you! Thanks and please correct if there are any mistakes ^ ^

Answer 2

Answer:

Let, the volume of O

3

=x mL.

Volume of O

2

present =(600−x) mL

22400 mL of O

3

and O

2

at STP will weight 48 g and 32 g respectively.

The weight of x mL of O

3

=

22400

x×48

g.

The weight of (600−x) mL of O

2

=

22400

(600−x)

×32.

Total weight of ozonised O

2

(600mL) =

22400

48x

+

22400

(600−x)×32

=1.0.

∴x=200 mL