How many gram atoms of H and S are contained in 0.4 mole of `H_2S`?

Calculate the mass of `CaCO_3` formed when `CO_2` gas is passed into a solution containing 3.7 gm of calcium hydroxide.

A sample of oxygen consists of three isotopes O-16,O-17 and 0-18 in the relative abundance of 99.76% , 0.04% an 0,20% re…

What is the atomic weight of a metal whose specific heat and equivalent weight are 0.057 and 38.21 respectively.

Calculate the total number of atoms present in 2.8 l of ethane gas at STP?

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

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

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