Examine the samples given: 20 g of `He`, 44.8 L of `NH_3` at STP, 67.2 L of `N_2` at STP, 1 mol of `H_2SO_4` and 180 g of `H_2O`: Arrange the samples in the increasing order of the number of molecules in each.

Examine the samples given. a) 20g He b) 44.8 L of NH_3 at STP c) 67.2 L N_2 at STP d) 1 mole of H_2 SO_4 e) 180g of water i) Arrange the samples in the increasing order of the number of molecules in each. ii) What will be the ascending order of the number of atoms? iii) What will be the mass of samples b,c, and d?

Find the number of moles in 7.8L of N_(2) at STP.

Arrange the following in decreasing order of their bond angle ': H_2 O, NH_3, H_2 S'

Certain samples are given below. 200g H_2 200g He 200g Ca Arrange them in the increasing order of number of molecules. (Hint Atomic mass of H = 1, He = 4, Ca = 40)

Find out the number of N atoms in. 22.4 L of N_2 at STP

Certain samples are given below. 200g H_2 200g He 200g Ca Find out the number of moles in each sample.

4.4 g of CO_(2) and 2.24 L H_(2) and STP are mixed in a container. The total number of molecules present in the container will be

Arrange the following samples in the increasing order of the molecules in each: 1g Hydrogen, 1 Litre hydrogen (STP), 1 mole Hydrogen gas.

Arrange the following in the decreasing order of number of molecules. a) 160g Oxygen gas b) 67.2L NH_3 , at STP. c) 4GMM Nitrogen