Calculate the ph of 1.00×10^-4 molar solution of HNO3

1.	Calculate the ph of 1.00×10^-4 molar solution of HNO3
Answer» Answer: $\displaystyle \sf \longrightarrow 5 \\$ Explanation: Given : $\displaystyle \sf Concentration [ \ H^+ \ ] = 1.00\times10^{-4} \ M \\ \\$ We are asked to FIND pH : We know : $\displaystyle \sf pH=-\log [ \ H^+ \ ] \\ \\$ PUTTING VALUES here we get : $\displaystyle \sf pH=-\log [ \ 1.00\times10^{-4} \ ] \\ \\$ $\displaystyle \sf pH=-\log [ \ 10.0\times10^{-5} \ ] \\ \\$ Using log RULE : $\displaystyle \sf \longrightarrow \log a^x=x. \log a \\ \\$ $\displaystyle \sf \longrightarrow \log 10=1 \\ \\$ $\displaystyle \sf \longrightarrow pH=-(-5).\log [ \ 10.0 \ ] \\ \\$ $\displaystyle \sf \longrightarrow pH=5.\log [ \ 10.0 \ ] \\ \\$ $\displaystyle \sf \longrightarrow pH=5\times1 \\ \\$ $\displaystyle \sf \longrightarrow pH=5 \\ \\$ Hence we get REQUIRED answer!

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