1 gm of an acid on reaction with magnesium gave 1.301 gm of anhydrous magnesium salt, Calculate the equivalent weight of…

4.2 g of metal carbonate on heating gave 1.12 l of `CO_2` gas at STP. Calculate the equivalent weight of metal.

Explain the molecular weight of an element.

0.383 g of metal on reaction with an acid displace 131 cc of dry `H_2` at STP. The specific heat of metal is o.1. The ex…

The total volume in a reaction mixture of 2 l of nitrogen and 3 l of `H_2` is:

Calculate the total number of mole in a reaction mixture of 4 gm of `H_2` and 48 gm of `O_2`.

How many molecules of water are present in 1 ml of water?

20 g of marble containing `90%\ CaCO_3` is allowed to react with 50 g of concentrated acid containing `36.5%` HCl by mas…