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Empirical & Molecular Formula
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Question 1
Suppose the elements X and Y combine to from two compounds XY2 and X3Y2. When 0.1 mole of XY2 weighs 10 g and 0.05 mole of X3Y2 weighs 9 g, the atomic weights of X and Y are
Question 2
The percentage of C, H and N in an organic compound are 40%, 13.3% and 46.7% respectively then empirical formula is:
Question 3
An organic compound contains carbon, hydrogen and oxygen. Its elemental analysis gave C, 38.71% and H, 9.67%. The empirical formula of the compound would be
Question 4
Potassium manganate is a dark green, crystalline substance whose composition is 39.6% K, 27.9% Mn, and 32.5% O, by mass. What is its empirical formula :
Question 5
The empirical formula of a compound is CH2O. If 0.0835 mole of the compound contains 1.0g of hydrogen, then the molecular formula of the compound is:
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May 31JEE & BITSAT