Calculate the pH of a dihydrogen phosphate/hydrogen phosphate buffer prepared with each of the following concentrations:

Q: Write the chemical equation and the Kspequation for equilibrium between solid magnesium hydroxide…

A: Magnesium hydroxide is an inorganic compound with the molecular formula of MgOH2. It is available in…

Q: List the composition of buffered solutions?

A: The composition of buffered solutions has to be listed

Q: How does buffer act to prevent a change in pH?

A: Buffer solution: The buffer solution is an aqueous solution consisting of a mixture of a weak acid…

Q: Table 6: pH of some Household Chemicals with indicators and pH meter Color with Red cabbage solution…

A: The objective of this question is to determine the pH of various household chemicals and observe the…

Q: acid:conjugate base

A:

Q: A solution contains 0.437 M sodium acetate and 0.397 M acetic acid. The pH of this solution is

A: Given : concentration of sodium acetate = 0.437 M  Concentration of acetic acid = 0.397 M  To…

Q: What are the properties of a buffer solution? Explain.

A:

Q: contains

A: For calculating the pH, we can used Hinderson equation,  pH = pKa + log( [salt] / [ acid ] )  Where…

Q: If phenolphthalein has been added to 100 mL of a clear solution and the solution does not change…

A: Phenolphthalein is used as an indicator in acid-base titration reactions. In an acid–base titration…

Q: What happens to the pH of an aqueous solution when a salt is dissolved?

A: The pH scale is introduced by the scientists Sorensen in order to express the hydronium ion…

Q: The pH of an aqueous solution of 4.45x102 M ammonium bromide, NH,Br (aq), is This solution is

A: NH4Br is a salt of weak base and strong acid. We have to determine pH of an aqueous solution of…

Q: The natural buffer in Earth’s oceans is composed of a carbonate/hydrogen carbonate system…

A: The question is based on the concept of Le-chatlier principle.  It States that when a system at…

Q: An analytical chemist is titrating 52.7 mL of a 0.3500M solution of methylamine (CH, NH,) with a…

A:

Q: Describe the action of Buffers?

A: A buffer solution is one which resists any change in its pH even upon the addition of small amounts…

Q: Calculate the pOH of a solution that is 0.428 M NaOH

A: We know that ,  PH = - log [H+]  POH = - log [OH-]  PH + POH = 14

Q: Equal amounts of hypochlorous acid and sodium borate are mixed together, is the resulting solution…

A: The question is based on the concept of salt hydrolysis. we are mixing acid and base to form the…

Q: The pH scale measures the acidity and basicity of solutions. What pH values correspond to basic…

A: The pH scale measures the acidity and basicity of solutions.

Q: A solution contains 0.131 M sodium cyanide and 0.359 Mhydrocyanic acid. The pH of this solution is

A:

Q: What was the maximum pH reached when hydrated lime is added to water? Explain the chemistry as to…

A: Water having carbonate and bicarbonates as anion , have pH value greater than neutral value .Such…

Q: Define the term Buffers?

A: ANSWER IS DISCUSSED  BELOW :

Q: How can bases form buffers ?

A: The concept used in this question is taken from Acid and Bases .  According to the question.  Buffer…

Q: Buffer systems operate in a roughly 2.0 pH unit range, centered around what value?

A: Effective buffer range of an acidic buffer is from pKa-1 to pKa + 1.   Centered value is pKa , at…

Q: The pH of an aqueous solution of 0.325 M hydrocyanic acid is

A: The concentration of hydrocyanic acid (HCN) = 0.325 M Ka of hydrocyanic acid = 6.2×10−10

Q: A solution contains 0.420 M CH3NH3 and 0.143 M methylamine, CH3NH2. The pH of this solution is .

A: Given : Concentration of CH3NH3+ = 0.420 M And concentration of CH3NH2 = 0.143 M Since the solution…

Q: Write a balanced net ionic equation to explain the observed pH for each of the following solutions:…

A: Aqueous solution of ammonia is a basic in nature. Because one molecule of ammonia takes out proton…

Q: Calculate the acid ionization constant (Ka) if the pH of the 0.1 M acetic acid solution is 2.87?

A: We have given that  Concentration of acetic acid = 0.1M  pH = 2.87

Q: If the molar concentration of Ca(OH)2 in a saturated solution is 2.12 X 10-2 M, determine the pH of…

A: The molar concentration of Ca(OH)2 in a saturated solution is = 2.12 X 10-2 M The pH of the solution…

Q: Where do water and hydrochloric acid (HCI) lie on the pH scale in relation to each other.

A: pH scale tells about the acidity or basicity of the substances. It is numbered from 1-14. The…

Q: titration

A:

Q: A solution contains 0.252 M sodium nitrite and 0.179 M nitrous acid. The pH of this solution is

A:

Q: What is the purpose of buffering?

A:

Q: Question 3 A student is given a concentrated solution that is supposed to contain vinegar, a weak…

A: A weak acid will not be completely dissociated in a solution. However, a strong acid will be…

Q: An analytical chemist is titrating 74.8 mL of a 0.7500M solution of propylamine (C,H,NH,) with a…

A:

Q: Write an equation for the ionizations of carbonic acid

A: Carbonic acid is a diprotic acid as it has two replaceable protons.

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.