A man gives 3 molecules of sugar to each person of the world how much gram of sugar will be given by the person if the population of world is 3*10^9
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THE ANSWER IS = 5.103X10^9gms
EXPLANATION:
you have C12H22O11 so first lets calculate its molecular mass
which is
= 144 +22+176 = 342 a.m.u
now i have converted a.m.u into grams. by multiplying it with 1.66×10^-24
so which is equal to
5.67 × 10 -22 g ---------------------- 1 molecule
this weight is for i molecule now by unitary method we can proceed for 3 molecules
which would be
(5.67 × 10 -22 × 3 )g
for 3 × 10^9 people you will need
5.67 × 10 -22 × 3 × 3 × 10^9grams of sugar
= 5.67 × 10^-22 × 3 x 3 × 10^9
=5.103x10^9
and done :)
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