Question

A solution of HCl has [H+] = 0.01 M. What is the pH of this solution?

–2
–1
1
2

Answer 1

pH=-log[H+]

Answer 2

nooo xD not this stuff again xD should know lol

Answer 3

Can you substitute and simplify? This one is already solved for pH.

Answer 4

haha, yup, this again.

Answer 5

kk so,...

Answer 6

-2=-log[0.01] ?

Answer 7

Hold on, where did the -2 come from?

Answer 8

the ph at the bottom i was plugging it in

Answer 9

Those are the answer choices. We don't know which one is right yet, so let's hold off on looking at those.

Answer 10

kk

Answer 11

So, pH=-log[0.01]
Right?

Answer 12

yes

Answer 13

:)

Answer 14

Can you simplify the log side (you will need to use a calculator).

Answer 15

1.02329299

Answer 16

- in front my bad

Answer 17

Are you sure you used the common log?

Answer 18

Not the natural log (ln)?

Answer 19

not sure you said log was 10^0.01 right

Answer 20

No, that is "undoing" the log to solve for the concentration.

Answer 21

But this problem we have the concentration.

Answer 22

You need to use the log button on your calculator this time.

Answer 23

Take the log of 0.01

Answer 24

It should be a button that says "log"

Answer 25

ohhh

Answer 26

:)

Answer 27

so it is -2

Answer 28

Right, log(0.01) is -2

Answer 29

So, pH=-(-2)

Answer 30

so it is 2?

Answer 31

:D

Answer 32

So D.

Answer 33

Yup

Answer 34

Thanks ;D

Answer 35

No worries