Question

Q 46 Which of the following weighs the most? (1) 32g of oxygen (ii) 10g atoms of hydrogen (iii) 0.5 of iron (iv) 6.022 x 1022 atoms of C (Atomic mass: O=16, N=14, Fe=56, C=12) Ma​

Answer 1

Solution
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(i) 32g of oxygen weighs the most.
(ii) 2g atoms of H
2
​
=2g
(iii) 0.5 mole of Fe=mole×atomicweight=0.5×56=28g
(iv) 6.022×10
23
=1 atom of d 3.01×10
23
atoms of C=
2
1
​
×12=

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