The ph of a solution is measured as 5.9. what is the hydrogen ion concentration of the solution?

In water  PH+Poh=14. Ph=14-pOH=14-5=9

Explanation:sorry its so long hope this helps

O

H

=

−

log

10

[

H

O

−

]

by definition.

Thus  

p

O

H

=

−

log

10

(

1

×

10

−

5

)

=

−

(

−

5

)

=

5

p

H

+

p

O

H

=

14

p

H

=

14

−

p

O

H

=

14

−

5

=

9

When we write  

log

a

b

=

c

, we ask to what power we raise the base,  

a

, to get  

b

; here  

a

c

=

b

. The normal bases are  

10

,  

(common logarithms)

, and  

e

,  

(natural logarithms)

.

Thus when we write  

log

10

(

10

−

5

)

, we are asking to what power we raise  

10

to get  

10

−

5

. Now clearly the answer is  

−

5

, i.e.  

log

10

(

10

−

5

)

=

−

5

, alternatively  

log

10

(

10

5

)

=

+

5

.

What are  

log

10

(

100

)

,

log

10

(

1000

)

,

log

10

(

1000000

)

?

?

You shouldn't need a calculator, but use one if you don't see it straight off.