What happened when the cola and borax solution was each added to the water? Is water...

What happened when the cola and borax solution was each added to the water? Is water a good buffering system? Why or why not, chemically speaking?

Solutions

Expert Solution

The pH of pure water is 7. It means it is neutral. The pH of cola is less than 7.It ranges from 2-3. As its pH is less than 7 it is acidic in nature. The pH of borax is greater than 7, its pH range is from 9-10. As its pH is greater than 7,it is basic in nature.
The pH of water will go from 7(neutral) to 3.3 (acidic) when cola is added to the water. It means the water pH of water is decreased. The neutral solution is turned to acidic,when cola is added to water.
The pH of water will go from 7(neutral) to 8.9 (basic) when borax is added to the water. It means the water pH of water is increased. The neutral solution is turned to basic,when borax is added to water.
A buffer system is a solution which can resist a change in pH when acids or bases are added to it.
As per the definition of buffering system, even though if any acid or base is added to it, its pH should not change. But in the above two cases, the pH of water is changed.
So Water is not a good buffering system.

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

a) what ions when added to water, do not change the ph of water? write an...

a) what ions when added to water, do not change the ph of water? write an example equilibrium rxn b) what ions when added to water, create an acidic solution? write an example equilibrium rxn c) what ions when added to water create a basic solution? write an example quibrilum rxn

What is the pH of a solution if 10-3 mol of NaHCO3 is added to DI water?

What is the pH of a solution if 10-3 mol of NaHCO3 is added to DI water? (ans=ph=8.79) Chemical reactions: Species: Charge balance: Proton condition: What if the carbonate minerals as CO2 is added? CB: PC: What if the carbonate minerals as Na2CO3 is added? CB: PC:

What mass of water would need to be added to 4.25g salt to make the solution...

What mass of water would need to be added to 4.25g salt to make the solution 28% salt?

Triethlyamine is added with deionized water, what is the chemical equation? Next, this solution is now...

Triethlyamine is added with deionized water, what is the chemical equation? Next, this solution is now neutralzied by adding HCL. What is the chemical equation and name of the salt? Finally, NaOH is added to the solution, what is the chemical equation showing the free amine? Please explain and show steps.

What is the pH of a solution that results when 0.012 mol HNO3 is added to...

What is the pH of a solution that results when 0.012 mol HNO3 is added to 610.0 mL of a solution that is 0.26 M in aqueous ammonia and 0.46M in ammonium nitrate. Assume no volume change. (Kb for NH3 = 1.8 × 10–5.) a. 8.96 b. 9.56 c. 5.04 d. 9.01 e. 4.44

Consider what is the pH of the solution when 25.0mL of 0.01M NaOH is added to...

Consider what is the pH of the solution when 25.0mL of 0.01M NaOH is added to 25.0mL of 0.01M acetic acid. Is it the same as in the case of HCl solution? What will the pH of the solution be if exactly 12.50mL of 0.01M NaOH solution is added to 25.0mL of 0.01M acetic acid solution?

HCl significantly reduced pH when added to water. For 1x10^-3M HCl solution, find the pH and...

HCl significantly reduced pH when added to water. For 1x10^-3M HCl solution, find the pH and [HCl] concentration at equilibrium. Solve problem by assuming whether solution is acidic or basic and using approximation method. HCl = H+ + Cl- K = 10^+3 Is it true that HCl almost completely dissociates in this system? Solve the problem again. This time assume that HCl completely dissociates and do not make an assumption about acidicity.

When an aqueous solution of 7.00 g of BaCl2 was added to an aqueous solution of...

When an aqueous solution of 7.00 g of BaCl2 was added to an aqueous solution of 5.25 g of K2SO4, a white precipitate formed. After filtering and drying the precipitate, 6.85 g of BaSO4 powder was obtained. BaCl2 (aq) + K2SO4(aq) BaSO4(s) + 2 KCl (aq) What is the theoretical yield of BaSO4? SHOW ALL WORK. What is the percent yield of BaSO4? SHOW ALL WORK In determining the concentration of a sulfuric acid solution, 32.63 mL of a 0.100...

What is the pH of a solution formed when 42.0mL of 0.120 M NaOH is added...

What is the pH of a solution formed when 42.0mL of 0.120 M NaOH is added to 50.0mL of 0.120 M CH3COOH? (Ka= 1.8x10^-5)

ENVIRONMENTAL ENGINEERING - When Cl2 gas is added to water for disinfection, it hydrolyzes with water...

ENVIRONMENTAL ENGINEERING - When Cl2 gas is added to water for disinfection, it hydrolyzes with water to form HOCl. The combined concentrations of HOCl and OCl- is called “free chlorine” and the pKa for HOCl is 7.5. What percentage of the total disinfection power (measured as CT OCl- ) exists in the acid form at pH = 6? At pH = 7? Which form is a stronger disinfectant?

Subjects