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Rakesh needs 1.71 g of sugar (C(12)H(22)...

Rakesh needs `1.71 g` of sugar `(C_(12)H_(22)O_(11))` to sweeten his tea. What would be the number of carbon atoms present in his tea?

A

`3.6xx10^(22)`

B

`7.2xx10^(21)`

C

`0.05xx10^(23)`

D

`6.6xx10^(22)`

Text Solution

Verified by Experts

The correct Answer is:
A
Mol.wt. of `C_(12)H_(22)O_(11)=342 g`
`342 g` sugar has `=12 N"atoms of"C`
`:. 1.71 g` sugar has `=(12xx6.02xx10^(23))/(342)"atoms"`
`=3.6xx10^(22) "atoms"`
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