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Mole Concept & Avogadro Number

What volume o...

Question

What volume of a liquid will contain 4 moles?
Molar mass of liquid is 280 and its density is $1.4 g / m L$

0.4 L

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1.6 L

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0.8 L

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4.8 \times 10^{23} L

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Solution

The correct option is D $0.8 L$
no. of moles = $\frac{m a s s}{m o l a r m a s s}$

Mass $= 4 \times 280 = 1120$ g

Volume = $\frac{m a s s}{d e n s i t y}$ = $\frac{1120}{1.4} \times 10^{- 3}$ L $= 0.8$ L

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