Calculate the following In three moles of ethane `(C_2H_6)` Number of moles of carbon atoms

Calculate the following in three moles of ethane (C_2H_6) Number of moles of hydrogen atoms

Calculate the following in three moles of ethane (C_2H_6) Number of molecules of ethane

Calculate the mass of one mole of electrons

56g Nitrogen is taken (Atomic mass: N=14) a) Calculate the number of moles in it. b) Find the number of molecuels. c) How many atoms are present in it?

a. Calculate the number of molecules in 5 moles of water.

Calculate the number of moles of of 0.72 gram of CO_2

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

Calculate the amount of carbon dioxide that could be produced when 2 moles of carbon are burnt in 16 g of dioxygen.

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)

What is the number of hydrogen atoms in one mole of methane (CH_4) ?