Calculate the mass of 0.5 mole of N2 (Nitrogen gas). ( atomic mass of N =14u) 3. Calculate the Molar mass of HCl. (atomic mass of H =1u; Cl = 35.5u) 4. Calculate the number of moles in 48g of helium (atomic mass of He= 4u ) 5. Calculate the Molar Mass of C2H6. (atomic mass of H =1u; and C=12u)
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