Question

Which one of the following isotope of carbon is used as a standard for deciding mole of a substance? *

C-12

C-13

C-14

C-15

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Answer 1

Answer:

C-12

Explanation:

thats the isotope of carbon that's used as standard

Answer 2

Answer:

carbon 12 isotope.

Explanation:

Because no other nuclides other than carbon-12 have exactly whole-number masses in this scale.