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Calculate the number of atoms of the 52 u of He
Calculate the concentration of nitric acid in moles per litre in a sample which has a density, 1.41 g mL–1and the mass per cent of nitric acid in it being 69%.
Use the data given in the following table to calculate the molar mass of naturally occurring argon isotopes:-
|Isotope||Isotopic molar mass||Abundance|