Rakesh needs 1.71 g of sugar (
CH..0..) to sweeten his tea. What would be the number of carbon atom present
in his tea:
(A) 3.6 10-
(B) 7.2 * 1021
(C) 0.05 102
(D) 6.6 x 1022
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Answer:
The answer is (A)
Explanation:
The number of moles is the ratio of mass to molar mass.
Moles of Sugar = 3421.71=2001 mol
The number of molecules is the product of the number of moles and Avogadro's number NA=6.023×1023.
Number of molecules = 2001×NA
Number of C atoms = 12×2001×NA
=3.6 ×10 22
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