Calculate the pH of this amount above using the formula
pH = - log10[H+]:
*if .00000765 is [H+]
B) pH = _______
The measure of acidity of a liquid is called the pH of the liquid. This is based on the amount of hydrogen ions (H+) in the liquid. The formula for pH is:
pH = −log[H+]
where [H+] is the concentration of hydrogen ions, given in a unit called mol/L (“moles per liter”).
Liquids with a low pH (down to 0) are more acidic and those with a high pH are more basic.
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Question 1
1.
Logarithms help us deal with ___________________________________
Other Answer Choices:
factors
math
pi numbers
numbers that are multiplied
centered numbers
cheese and crackers
extremely big or small numbers
Question 2
2.
Question 3
3.
Question 4
4.
What is log264=_______
Question 5
5.
pH tells us how ____________________ a sample is.
Other Answer Choices:
additive or subtractive
kind
blue or red
acidic or basic
fishy and snapply
Question 6
6.
Question 7
7.
Convert these two amounts to scientific notation:
A) .0000000398 = _______x 10 _______
B) .00000000398 = _______x 10 _______
Hint scientific notation:
.098 is 9.8 x 10-2
Question 8
8.
Calculate the pH of these two amounts using the formula.
A) .0000000398, pH = _______
B) .00000000398, pH = _______
Question 12
12.
If the pH of a sample is 3.5. Then what is the [H+] concentration? Use the formula.