Calculate the number of atoms in 0.25 mole atoms of carbon.

Calculate the number of atoms in: i. 0.25 mole àtoms of carbon ii. 0.20 mole molecules of oxygen

Calculate the number of atoms in 48 g of He?

Calculate number of atoms in 8 g Helium

Calculate the number of atoms in. a. 1g of hydrógen

Calculate the number of atoms in each of the following. (i) 52 moles of Ar.

Calculate the number of atoms in a cubic based unit cell having one atom on each Corner and two atoms on each body diagonal

Calculate the number of atoms present in 1.4 g of N_2 molecule.

The number of atoms in 0.1 mol of a triatomic gas is'

One mole of an ideal gas occupies 22.4L at STP. Calculate the number of atoms present in the above sample.

NH_3 , gas at STP is kept in a cylinder of volume 5600mL. a) How many moles of NH_3 , is present in the cylinder? b) Calculate the mass of gas in the cyclinder. c) Find the number of molecules in the gas calculate the number of atoms in it. (Hint: Atomic mass, N=14, H-D)