A solution has ph 4.When another solution of unknown ph is mixed with it the ph of resulting solution becomes 5 the solution with unknown ph must have
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when an base is added to acid the pH value increases so from 4 to 5 the unknown solution is a base for example NaOH
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Answer:
Explanation:
ph=4
h plus 1 =10^-4
h plus 2 = 10^-x
total h plus = 10^-5
total h plus = hplus1 + hplus 2
10^-5 = 10^-4 +10^-x
10^-5-10^-4 = 10^x
-10^-5(9)=10^x
log on both sides
5-log 9 = x
5-0.94 =x
4.06 =x
ph=4.06
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