3 years ago

Select The on that most applysWill mark brainliest

Chemistry

2 answers:

vodomira [7]3 years ago

8 0

Answer: A and C

Explanation:

Digiron [165]3 years ago

6 0

Answer:

Its eather A or C

Explanation:

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How many carbon atoms are present in 3.900 x 10-4 mol of carbon? Give your answer in scientific notation. x 10 (select) A

AnnyKZ [126]

Answer: The number of atoms of carbon present in given number of moles are $2.350\times 10^{20}$

Explanation:

We are given:

Number of moles of carbon = $3.900\times 10^{-4}mol$

According to mole concept:

1 mole of an element contains $6.022\times 10^{23}$ number of atoms.

So, $3.900\times 10^{-4}mol$ of carbon will contain = $3.900\times 10^{-4}\times 6.022\times 10^{23}=2.350\times 10^{20}$ number of atoms.

Hence, the number of atoms of carbon present in given number of moles are $2.350\times 10^{20}$

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