1.

B. Point out the difference between 12 g ofcarbon and 12 u of carbon

Answer»

Carbon is a chemical element having the symbol C and the atomic number as 6. Exactly 12 grams of pure carbon-12 is known as one mole of carbon. The number of atoms of carbon-12 present in the one mole sample is - 6.022 136 7 x 10`23

12g of carbon is the overall weight of carbon expressed in the form of gram atomic mass, whereas, 12u of carbon is weight of carbon expressed as relative mass or is the mass of one carbon - 12 atom, where u is the atomic mass whose actual weight is -

1 u = 1.66×10⁻²⁴g

12u c means the mass of 12 electron's c but 12 g c means 1 mole c atom's mass 1u =1.6605×10^-27kg

12u c means the mass of 12 electron's c but 12g c means 1 mole c atom's mass 1u=1.6605×10^-27kg



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