Silver nitrate is added to a 25 cm3 sample of hydrochloric acid. A white precipitate of silver chloride is the?

There is no need to submit the same question twice:

Molar mass AgCl = 143.3 g/mol

0.3537g of AgCl = 0.3537 / 143.3 = 0.002468 mol AgCl

0.002468 mol AgCl will contain 0.002468 mol Cl- ions

Therefore you reacted 0.002468 mol HCl

25mL HCl solution contained 0.002468 mol HCl

1000mL HCl solution contained 1000/25*0.002468 = 0.0987 mol HCl in 1.0L solution

This is 0.10 mol /litre

[H+] = 0.1M

pH = -log 0.1

pH = 1.0

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