Question

A solution in which the [H+] is 1.0 × 10–4 mol/L is said to be
A. acidic.

B. basic.

C. neutral.

D. none of the above

Answer 1

Well, do you know how to find pH?

Answer 2

given acid concentration

Answer 3

I know how to get that but when I look at my notes it tells me that the answer is supposed to be basic... and it's wrong.

my notes say
"Acidic solution – a solution in which [H+] is greater than [OH-] → greater than 1 * 10-7M
Basic solution – one in which [H+] is less than [OH-] → less than 1 * 10-7M"

which is why I'm confused.

Answer 4

pH = -log[H\(^+\)]
pH = 7 is neutral
pH < 7 is acidic
pH > 7 is basic

Answer 5

ok so when I did that it gave me a 4...so the answer would be acidic? I'm not the best at chemistry...:/

Answer 6

Look at what I wrote. and look at the pH scale.

Answer 7

oh this is so confusing. basic is not the answer I already tried that.

Answer 8

\(\sf \color{red}{pH < 7}\) what does that say up there? Does a pH < 7 say it is basic?

Answer 9

-log(1.0 × 10–4) = 4...or am I doing this wrong?

Answer 10

Is 4 > 7 or is 4 < 7????????

Answer 11

4 < 7 so acidic would be the answer.

Answer 12

YES!

Answer 13

pH of your solution or whatever is 4, therefore, it is considered to be acidic, not basic.
Like i said above, anything GREATER than 7 is basic. Anything LESS is acidic.

Answer 14

sorry... my head is slow today... not enough coffee... thanks