Answer:
A. 1.585 x 10^-12 M.
B. 2.512 x 10^-12 M.
Explanation:
A.
citric acid: pH 2.20
pH + pOH = 14
pOH = 14 - 2.20
= 11.80
Remember, pOH = - log [OH]
[OH] = 10^-pOH
= 10^-11.8
= 1.585 x 10^-12 M
B.
Household vinegar: pH 2.40
pH + pOH = 14
pOH = 14 - 2.40
= 11.60
Remember, pOH = - log [OH]
[OH] = 10^-pOH
= 10^-11.6
= 2.512 x 10^-12 M
Answer:
A. All organisms need water as energy source
Answer : The volume of 6M NaOH stock solution is, 16.7 mL
Explanation :
To calculate the volume of NaOH stock solution, we use the equation given by neutralization reaction:
where,
are the molarity and volume of NaOH stock solution.
are the molarity and volume of NaOH.
We are given:
Putting values in above equation, we get:
Thus, the volume of 6M NaOH stock solution is, 16.7 mL