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1. |
`1 cm^(3)` of 0.01 N HCl solution is added to one litre of sodium chloride solution . Calculate the pH of the resulting solution. |
Answer» Since NaCI is a neutral salt, its solution as such will not give any `H^(+)` ions. It will dilute HCI solution. Concentration of HCI before dilution =0.01 N Concentration of HCI after dilution `=0.01//1000 = 10^(-5) N=10^(-5) M.` lt brgt (HCI is a monobasic acid. Its molarity and normality are the same) `[H_(3)O^(+)] =10^(5) , pH =- log (10^(-5) M) =(-) (-5) log 10 =5` |
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