AP BIOLOGY

BIOCHEMISTRY

ISOMERS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How many carbon atoms are in butane?
A
1
B
2
C
3
D
4
Explanation: 

Detailed explanation-1: -Butane is a straight chain alkane composed of 4 carbon atoms.

Detailed explanation-2: -Mass of carbon in 4g of butane = 82.8/100 *4 = 3.312g. 3.312g of carbon is equal to how many moles of carbon? 3.312/12 = 0.276 moles.

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