Question

Calculate the PH of 1 mole of 1m Hcl solution diluted to 1 litre
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Answer 1

Explanation:

Commercial concentrated HCl:

Specific gravity = 1.19

1.19g of HCl in 1ml of water

Assay= 37.4%

37.4ml of HCl in 100ml of water

i.e. 37.4 x 1.19 = 44.506g of HCl in 100ml of water

Formula weight = 36.46

1M = 36.46 g HCl in 1000ml of water

So if 44.506g of HCl is present in 100ml of water

Or 445.06g of HCl is present in 1000ml of water

Molarity of that solution is 445.06 / 36.46 = 12.2

Thus molarity of concentrated HCl is 12.2 M

Answer 2

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