Answer:
(a) 1 mole of carbon atom =6.022 x 10
atoms 6.022 x 1023 atoms of carbon weigh =12 g atom of carbon weighs
(b) (i)n=0.5
mol ; M=14 x 2 = 28 g; w = ?
m = n x M = 0.5x
28 = 14.0g
(ii) n = 0.2
mol; M = 16 g; m = ?
m = n x M = 0.2x
16 = 3.2 g
(iii) n = 4
mol; M = 27 g; m = ?
m = nx M = 4 x 27=
108 g
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