Calculate the no of electrons in 1g.

Calculate the number of electrons constituting one coulomb of charge.

Calculate the number of moles in 10g of CH_4 .

Calculate the magnitute of electrostatic force between a proton and an electron separated by a distance 0.5.A Give that magnitude of charge of proton and electron to be 1.6xx10^(-19) C each

Calculate the number of moles is 60g NaOH.

Calculate the Momentum of the electrons accelerated through a potential difference of 56 V.

It is found experimentally that 13.6eV energy required to separate a hydrogen atom into a proton and an electron.Calculate the velocity of the electron in hydrogen atom.

Calculate the electrostatic force in hydrogen atom in which the electron and proton are about 5.3*10^-11 metre apart.

On dissolving 19.5g CH_2F COOH in 500g of water, a depression of 1^@C in freezing point of water is observed. Calculate the vant Hoff factor and dissociation constant of Fluoroacetic acid. (Given, K_f = 1.86 K kg mol^-1)