1.a) Calculate the molecular mass of water (H2O) b) Calculate the molecular mass of HNO3 2 Calculate the molecular masses of the following : i) Cu.SO4 ii) Al2(SO4)3 iii) H2SO4. (Given atomic masses : C=12u, H=1uO=16u, Al=27u S=32u, Cu=63.5u 2.Write down the chemical formulae of Aluminium oxide ii) Aluminium chloride iii) Calcium hydroxide iv) Sodium carbonate v) ,Magnesium oxide
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a) 18 g/mol
B) 63 g/mol
I) 159.5 g / mol
Ii) 342 g/mol
III) 98 g/mol
I) Al2O3
II) AlCl3
III) Ca(Oh) 2
IV) Na2CO3
V) MgO
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