A commercially sold conc. HCl is 35% HCl by mass. If the density of this commercial acid is 1.46 g/mL, the molarity of this solution is

Option 1 - 10.2 M

Option 2 - 12.5 M

Option 3 - 14.0 M

Option 4 - 18.2 M

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Answered by

Payal Gupta | Contributor-Level 10

6 months ago

Correct Option - 3

Detailed Solution:

$M o l a l i t y = \frac{m o l e s o f s o l u t e * 1000}{w t o f s o l v e n t (g m)}$

$M o l a l i t y = \frac{35 * 1000 * 1.46}{36.5 * 100}$ = 14.0 M

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