Hey guys! So I have this chemistry problem which I'm finding very difficult.
QUESTION:
You have an unknown triprotic acid, H3X, and have titrated it with 22.53mL of NaOH. The pH of the unknown solution is 2.04 and the concentration is 48.028g/2L. While the concentration of the NaOH is...
Homework Statement
Evaluate:
6^1 + 6 ^ −1 / 6^1 − 6 ^ −1
Homework Equations
Exponent Laws
The Attempt at a Solution
6^1 + 6 ^ −1 / 6^1 − 6 ^ −1
= 6^1 + 6 ^1 / 6^1 − 6 ^ 1 (I flipped the side - top or bottom - of the negative exponent numbers)
=12/0
but i think i did it wrong
Homework Statement
Without using a calculator and without evaluating expressions, determine which is greater. 20^100 or 400^40
Homework Equations
None, however some exponent laws and possibly mental math are applicable.
The Attempt at a Solution
I don't know how to reach an answer without...
Homework Statement
For which non-zero value of x is the equation -x^ -4 = (-x)^ -4 true? Explain.
Homework Equations
None. Other than applicable exponent laws.
The Attempt at a Solution
I know how to use the guess and check method. But I was wondering how to reach the answer faster and how...