how many molecules of benzene are there in 1L of c6h6
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Explanation:
specific gravity of benzene is 0.88
specific gravity=(density of substance)/(density of water at 4°C)
Let density of benzene= X
⇒0.88= X/1 [density of water at 4°C= 1 gm/ml]
⇒X= 0.88
Density of benzene = 0.88 gm/ml
Mass = Density × Volume
⇒mass= 0.88 gm/ml × 1000 ml
⇒mass=880 gm
Molar mass of benzene= 72 + 6
= 78
Moles of benzene= 880 gm/ 78 gm
= 11.282 moles
1 moles ⇒ 6.022 × 10^23 molecules
11.282 moles ⇒ 11.282 × 6.022 × 10^23 molecules
=6.79 × 10^24 molecules
answer: 6.79 × 10^24 molecules
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