Question

What is the number of moles of SO2 in a sample containing 7 molecules?​

Answer 1

Answer:

the answer is 1.16 × 10^-23 moles

Explanation:

the answer can be found by the formula:

No. of molecules=moles × avogadro number(6.022×10^23)

Answer 2

To find:

Number of moles of SO2 in a sample containing 7 molecules

Calculation:

We know that 1 mole of any substance contains Avogadro number of molecules for that substance. This means that 1 mole of any compound will have 6.023 × 10^(23) molecules.

1 mole of SO2 contains $6.023\times{10}^{23}$ molecules.

So, 7 molecules of SO2 will be contained in :

$\rm{\therefore\:Total \:moles= \dfrac{1}{6.023 \times {(10)}^{23} } \times 7}$

$\rm{=>Total\:moles = \dfrac{7 \times {10}^{ - 23} }{6.023 }}$

$\rm{ =>Total\:Moles= 1.162 \times {10}^{ - 23} \: mole}$

So, final answer is:

$\boxed{ \bf{ \boxed{1.162 \times {10}^{ - 23} \: mole} \: has \: 7 \: molecules}}$