The molarity of a solution when 245 g of H 2 SO 4 is dissolved in 1 L of solution is -A- 2-5B- 9-6C- 10

The correct option is A 2.5Given mass of nbsp; H_2SO_4 = 245 g Gram molecular mass of nbsp; H_2SO_4 = 2(1)+ 32 + 4(16) nbsp; = nbsp; 98 g Number of mol ...

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Standard X

Chemistry

Molarity

The molarity ...

Question

The molarity of a solution when 245 g of H₂SO₄ is dissolved in 1 L of solution is .

2.5

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9.6

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Solution

The correct option is A 2.5
Given mass of $H_{2} {SO}_{4}$ = 245 g
Gram molecular mass of $H_{2} {SO}_{4}$ = 2(1)+ 32 + 4(16) = 98 g

$Number of moles$ = $\frac{M a s s i n g r a m s}{G r a m m o l e c u l a r m a s s}$

= $\frac{245}{98}$

= 2.5 moles

Molarity is defined as the number of moles of solute present in 1 L of solution.

$M$ = $\frac{N u m b e r o f m o l e s o f s o l u t e}{V o l u m e o f s o l u t i o n i n l i t r e s}$

= $\frac{2.5}{1}$

= 2.5 M

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The molarity of a solution when 245 g of H2SO4 is dissolved in 1 L of solution is .

The molarity of a solution when 245 g of H₂SO₄ is dissolved in 1 L of solution is .