pure water has a hydrogen ion concentration of 1 x 10-7 m and a ph of 7. a student measures a basic solution and finds that it has a hydrogen ion (H+) concentration of 1 x 10-3. explain why the student must have an error in her statement

Question

anonymous · Answer

I am taking a very important test and I don"t know this one may someone can please help me.

aravindg · Answer

Hello! Welcome to Openstudy!

Here is an advice: Do not use Openstudy as a medium to get answers during a test. You can come here before your tests to prepare for them.

Assuming your test is over by now, the reason why the reading is wrong is that when we calculate pH for  1 x 10-3, we get pH=3. But for basic solutions pH is always greater than 7. Hence the reading of student is wrong.

Next time post these Questions in our Chemistry Group. Thank you! :)

jlg030597 · Answer

I agree with @AravindG