Calculate the weight of 0.1 mole of sodiumcarbonate
1.06g
11.06g
10.6g
1.106g

Calculate the weight of : 10.0 g atoms of sodium.

Calculate : the weight of 0.25 g atom of calcium.

Calculate the number of moles in each of the following : a. 11 g of CO_(2)

Calcualte the number of moles of magnesium present in a magnesium ribbon weighting 12g. Molar atomic mass of magnesium is 24 g mol^(-1) .

The measured density at NTP of He is 0.1784 g L^(-1) . Calculate the weight of 1 "mole" of He .

The mass of a mole of electrons is: 0.008 g 0.184 g 0.55 mg 1.673

Calculate the density of a body of mass (10+-0.6)g and volume (4.4+-0.7) cm^(3) , to the correct significant figures?

A sample of radioactive isotope with a half life of 20 days weighs 1 g . After 40 days the weight of the remaining elements is a. 0.5 g b. 0.0 g c. 0.25 g d. 1//6 g

The solubility of BaSO_(4) in water is 2.33 g 100 mL^(-1) . Calculate the percentage loss in weight when 0.2g of BaSO_(4) is washed with a. 1L of water b. 1L of 0.01 NH_(2)SO_(4).[Mw_(BaSO_(4)) = 233 g mol^(-1)]

Calculate the gas constant for 1 g of gas from the following data : C_p=0.245 "cal g"^(-1).^@C^(-1), C_v=0.165" cal g"^(-1).^@C^(-1)and J=4.2 xx10^7 erg cal^(-1)