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The atomic mass of an element is 50 (i) Calculate the mass of one atom, in amu (ii) Calculate the mass of 6.022xx10^(23) atoms, in gm (iii) Calculate the number of atoms in its 10 gm (iv) What mass of the element contains 3.011xx10^(20) atoms |
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Answer» Solution :(i) 50 AMU `""` (ii) 50 GM (iii) `because` 50 gm of element contains `6.022xx10^(23)` atoms `therefore ` 10 gm of element will contain `(6.022xx10^(23))/(50)xx10=1.2044xx10^(22)` atoms (iv) `because 6.022xx10^(23)` atoms weighs 50 gm `therefore 3.011xx10^(20)` atoms weighs `(50)/(6.022xx10^(23))xx3.011xx10^(20)=0.025` gm |
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