Calculate the gram molecular mass/gram formula mass of the following.

NH₄NO₃

(Gram atomic masses H = 1 g, N = 14 g, O = 16 g, Na = 23 g, S = 32 g, Cl = 35.5 g, Ca = 40 g)

Calculate the gram molecular mass/gram formula mass of the following.

CaCl₂

(Gram atomic masses H = 1 g, N = 14 g, O = 16 g, Na = 23 g, S = 32 g, Cl = 35.5 g, Ca = 40 g)

Calculate the gram molecular mass/gram formula mass of the following.

Na₂SO₄

(Gram atomic masses H = 1 g, N = 14 g, O = 16 g, Na = 23 g, S = 32 g, Cl = 35.5 g, Ca = 40 g)

Given below are a few samples.

a. 400 g of water (H₂O)

b. 400 g of carbon (C)

c. 400 g of helium (He)

d. 400 g of hydrogen (H₂)

e. 400 g of glucose (C₆H₁₂O₆)

(i) Find the number of moles in each.

(ii) Arrange the samples in the increasing order of their number of moles.

(Gram molecular masses He = 4 g, C = 12 g, H₂ = 2 g, H₂O = 18 g, C₆H₁₂O₆ = 180 g)

Calculate the following.

Number of moles in 1 kg of water.

(GMM/GFM: H₂O - 18 g, CaCO₃ - 100 g, CO₂ - 44 g, NH₃ - 17 g)