Question

solve question no.69 in above pic​

Answer 1

Answer:

since ph = -log (h+)

so we will find poh first by

poh=- log (oh-)

which is equal to ......... 10

since poh +ph =14

therefore ph will be equal to ....14-10=4

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Answer 2

$\huge\red{HOLA!!}$

poh=-log[oh]

poh=10

so

ph=4

$<marquee>$

GOOD NIGHT ❤