Question

Arrange the following in order of increasing masses :(i) 0.1g atom silver (ii) 0.1 mole of H2SO4 III) 10 to the power of 23 molecules of CO2gas (iv) 1 gram of carbon (v) 10 to the power of 23 atom of calcium (Atomic masses : Ag =108 u ,N=14u ,S=32u ,Ca=40u)

Answer 1

1)mole=0.1
weight=mole x molar weight=0.1 x 107.87=10.787g

2) weight of H2SO4=0.1 x 98=9.8 g

3) mole =no of molecule/6.023 x 10^23
=10^23/6.023 x 10^23=1/6.023

weight of CO2= mole x molar weight
=1/6.023 x 44=7.3 g (approx)

4) weight of carbon=1g

5) mole =1/6.023
weight =mole x molar weight
=1/6.023 x 40=6.67 g (approx)

now increasing order of their masses:-
(4) < (5) < (3) < (2) <(1)

Answer 2

Answer:

(i) is less than (v) which is less than (iii) which is also less than (ii) which is lastly less than (i)

Explanation:

See the picture: