Questions in chemical-aritmatic

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	How many g of a dibasic acid (Mol. wt. = 200) should be present in 100 ml of its aqueous solution to give decinormal strength
	The solution of sulphuric acid contains 80% by weight ${H_2}S{O_4}$. Specific gravity of this solution is 1.71. Its normality is about
	Mohr's salt is dissolved in dil. ${H_2}S{O_4}$ instead of distilled water to
	Acidified potassium permanganate solution is decolourised by
	Approximate atomic weight of an element is 26.89. If its equivalent weight is 8.9, the exact atomic weight of element would be
	Vapour density of a gas is 22. What is its molecular mass
	Equivalent weight of $KMn{O_4}$ acting as an oxidant in acidic medium is
	0.16 g of dibasic acid required 25 ml of decinormal NaOH solution for complete neutralisation. The molecular weight of the acid will be
	To neutralise 20 ml of $M/10$ sodium hydroxide, the volume of $M/20$ hydrochloric acid required is
	Hydrochloric acid solutions A and B have concentration of 0.5 N and 0.1 N respectively. The volume of solutions A and B required to make 2 litres of 0.2 N hydrochloric are