Question

What is the pH of pure water with 10-2 M NaOH added? What is the alkalinity?

What is the pH of pure water with 10-2 M NaOH added? What is the alkalinity?

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

NaOH is strong base

NaOH(aq) ------------> Na^+ (aq) + OH^-

10^-2 M                                          10^-2 M

[OH^-]   = [NaOH]

[OH^-] = 10^-2M

POH = -log10^-2

          = 2

POH = 2

PH = 14-POH

        = 14-2 = 12

Alkalinity is the name given to the quantitative capacity of an aqueous solution to neutralize and acid

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
You have a water sample with an alkalinity of 2.3 x 10-3 eq/L and a pH...
You have a water sample with an alkalinity of 2.3 x 10-3 eq/L and a pH of 8.10. Assume that the inorganic carbon species are the main contributors to alkalinity (true in most natural water systems). Calculate the [H2CO3*], [HCO3 - ] [CO3 2- ] and [OH- ] concentrations
An unknown quantity of Ca(OH)2 is added to the pure water. At equilibrium, the final pH...
An unknown quantity of Ca(OH)2 is added to the pure water. At equilibrium, the final pH was found to be 9.2. MM of Ca(OH)2=74g/mol Calcium hydroxide: Ca(OH)2 -> Ca2+ + 2OH- Ksp: 2 x 10-14  M3 Water dissociation: H2O -> H+ + OH Kw: 1.0 x 10-14 M2 Is there any solid remaining at equilibrium? Explain quantitatively.
calculate the volume of 1.50 × 10-2 M NaOH that must be added to 500.0 mL...
calculate the volume of 1.50 × 10-2 M NaOH that must be added to 500.0 mL of 0.200 M HCl to give a solution that has pH = 2.05 .Volume = __L
How much Ca(OH)2 must be added to initially pure water to raise the pH to 11?...
How much Ca(OH)2 must be added to initially pure water to raise the pH to 11? Express your answer in mass concentration.
What is the pH when 50 mL 1 M NaOH is added to 450 mL 0.5...
What is the pH when 50 mL 1 M NaOH is added to 450 mL 0.5 M acetic acid?
Nitrous Acid (HNO2) was added to 50 gallons of pure water until the pH of the...
Nitrous Acid (HNO2) was added to 50 gallons of pure water until the pH of the solution dropped to 3.50. The Log Acidity Constant (pKA) for HA is 3.15. How much acid (in grams) was added to the water?
Nitrous acid was added to 100 gallons of pure water until the pH of the solution...
Nitrous acid was added to 100 gallons of pure water until the pH of the solution dropped to 3.50. How much acid (in grams) was added to the water? Relevant information can be found near the end of the Acid-Base PowerPoint presentation.
Calculate the pH after 0.017 mole of NaOH is added to 1.00 L of each of...
Calculate the pH after 0.017 mole of NaOH is added to 1.00 L of each of the four solutions. (Assume that all solutions are at 25°C.) a) 0.143 M acetic acid (HC2H3O2, Ka = 1.8 ✕ 10−5) b) 0.143 M sodium acetate (NaC2H3O2) c)  pure H2O d) 0.143 M HC2H3O2 and 0.143 M NaC2H3O2
What is the pH after 0.050 mol NaOH is added to 1.00 L of a buffer...
What is the pH after 0.050 mol NaOH is added to 1.00 L of a buffer that is 0.550 M (CH3)3N and 0.550 M (CH3)3NHCl? Kb= 7.4 x 10^-5
Calculate the pH after 0.020 mole of HCl and 0.020 mol of NaOH is added to...
Calculate the pH after 0.020 mole of HCl and 0.020 mol of NaOH is added to 1.00L of each of the four solution and determine which of the solutions shows the least change in pH upon the addition of acid or base a) 0.100 M propanoic acid (HC3H5O2, Ka = 1.3 times 10^-5) b) 0.100 M sodium propanoate (NaC3H5O2) c) pure H2O d) a mixture containing 0.100 M HONH2 and 0.100 M HONH3Cl
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT