The pH of a 200 ml solution having 0.365 g of dissolved HCl is 1.3.
What is pH?
pH is a measuring scale, which measures the acidity and basicity of a solution. The scale is from 0 to 14. Acidic to basic. The less the pH means, it is acidic and the more the pH means, it is basic.
Number of moles HCl = grams / molar mass
the molar mass of HCl is 36.5
0.365 / 36.5 = 0.01 mols.
Molarity = M = mols/L
0.01 mol / 0.200 L = 0.05 M = (H⁺)
Then pH = -log(H⁺)
pH = -log (0.05)
PH = 1.30102
Thus, the pH of the solution is 1.3.
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