Question

How many molecules of benzene are
there in 1L
of C6H6 [d=0.88g/cm3]???
​

Answer 1

Answer:

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Answer 2

Explanation:

Given -

• 1 L C6H6, density(d) = 0.88 g/cm³

To Find -

• How many molecules of benzene are there in 1 L of C6H6

Solution -

d = m/v

0.88 = m/1 × 1000

m = 0.88 × 1000

m = 880

Now,

As we know that -

• mole = mass/GMM

n_{C6H6} = 880/78

n_{C6H6} = 11.282

Then,

Number of molecules = n × 6.022 × 10²³

= 11.282 × 6.022 × 10²³

= 67.94 × 10²³

Hence,

The number of molecules present in 1 L of C6H6 is 67.94 × 10²³.