Question

”Which of the following weighs most?
(I)50 g of iron (ii) 5 g atoms of nitrogen (iii) 0.1 g atom of silver (iv) 1 x 1023 atoms of carbon​

Answer 1

Answer : 5 g atoms of nitrogen weighs most.

Explanation :

We have to calculate the mass for all the options.

For part 1 : 50 g of iron

The mass of iron = 50 g

For part 2 : 5 g atoms of nitrogen

As we know that the 5 gram atom is equal to 5 moles

As, 1 mole of nitrogen contains 28 g of nitrogen

So, 5 moles of nitrogen contains of nitrogen

The mass of nitrogen = 140 g

For part 3 : 0.1 g atoms of silver

As we know that the 0.1 gram atom is equal to 0.1 moles

As, 1 mole of silver contains 108 g of silver

So, 0.1 moles of silver contains of silver

The mass of silver = 10.8 g

For part 4 : atoms of carbon

As, atoms of carbon present in 12 g of carbon

So, atoms of carbon present in of carbon

The mass of carbon = 1.99 g

From this we conclude that 5 g atoms of nitrogen weighs most.

Hence, the correct option is, 5 g atoms of nitrogen

Answer 2

Explanation:

Hope this answer helps you. cheers for your future champion