Question

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Answer 1

pH=-log[H+\]
6.8=-log [H+]
antilog (-6.8) = [H+]
1.585 X 10 ^-7 = [H+}

Answer 2

Do you understand? @adrianajones

Answer 3

The pH value of something is defined to be -log[H+] where [H+] is the concentration of hydrogen ion.

Answer 4

There's nothing more to explain, the rest is just solving equation.

Answer 5

Mind showing us your steps? You've probably mixed -log[H+] with log[H+]

Answer 6

Don't forget the negative sign

Answer 7

This is scientific notation.

Answer 8

1.585e-7 means 1.585*10^-7

Answer 9

Get it?

Answer 10

Your calculator is correct

Answer 11

Your calculator is avoiding to show many zeros.

Answer 12

For example, 6.02*10^-18 would be 0.00000000000000000602

Answer 13

[H+] is the hydrogen ion concentration.

Answer 14

It should actually be \([H^+]\) but everybody understands it

Answer 15

0.0000001585