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Chemistry2024easy

Mole Concept

The highest number of helium atoms is in

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Mole Concept

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Which one of the followings has maximum number of atoms ?

A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with conc. $H_2SO_4$ . The evolved gaseous mixture is passed through KOH pellets. Weight (in g) of the remaining product at STP will be

Suppose the elements X and Y combine to form two compounds $XY_2$ and $X_3Y_2$ . When 0.1 mole of $XY_2$ weighs 10 g and 0.05 mole of $X_3Y_2$ weighs 9 g, the atomic weights of X and Y are

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