Question

Raunak took 5 moles of carbon atoms in a container and Krish also took 5 moles of sodium atoms in another container of same weight. Whose container is heavier? Whose container has more number of atoms?

Answer 1

1 mole of sodium=23u
5 mole of sodium=115u

1 mole of carbon=12u
5 mole of carbon=60u
mass of 5mole of sodium is greater than that of carbon.
Krish container is heavier.


since 1mole= 6.022×10^23 atoms which is constant. therefore both contain equal no. of atoms.

Answer 2

Mole of a substance = gram atomic mass

1 mole of C = 12g & 1 mole of Na =23g

so,

5 moles of C=60g & 5 moles of Na=115g

so Krish's container is heavier than Raunak's container

we know that one mole of any substance has 6.022×10^23 no of atoms so 5 moles will also have the same

so both the containers will have the same no of atoms.

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