Calculate the molecular mass of `Ca_3(PO_4)_2` [Atomic mass of Ca= 40, P=30. O=16`

Calculate the molecular mass of nitric acid, HNO_(3) . (Atomic masses : H = 1 u, N = 14 u , O = 16 u )

Calculate the molecular mass of ethanoic acid, CH_(3)COOH . (Atomic masses : C = 12 u , H = 1 u , O = 16 u )

What is meant by the term chemical formula ? Write the chemical formula of calcium oxide. Calculate its formula unit mass. ("Atomic mass of Ca"=40u, O=16u) .

Calculate the molecular mass of sulphuric acid (H_(2)SO_(4)) . (Given : Atomic masses : H = 1 , S = 32 u , O = 16 u ).

Ca_(3)(PO_(4))_(2) is :

(a) Define polyatomic ions. Write an example. (b) Calculate the formula unit mass of CaCO_(3) (Atomic mass of C=12u, Ca=40u, O=16u) (c) Calculate the molecular mass of the following (i) HNO_(3) (ii) CH_(3)COOH Atomic mass of H=14N, N=14u, O=16u, C=12u

Calculate the mass of 1.2044 xx 10^(23) molecules of O_(2) ("Atomic mass of O"=16u) .

What mass of CaO will be obtained by heating 3 mole of CaCO_(3) ? [Atomic mass of Ca=40 ]