What is the pH of a 0.32 M solution of a weak acid, HCNO if Ka for HCNO is 2.0 x 10-4?  (SHOW CALCULATIONS) (b) How would the pH change if 0.10 M KCNO is added to the solution and show how you determined this change.

Q: 1. The oxalate ion concentration, C;0. of 0.20 M H;C0 is adjusted to a value of 3.00 x 10 M. What is…

A: As per the guideline, since you have asked multiple questions, we have solved the first question for…

Q: What is the pH of a 0.710 M solution of C5H5NHB (Kb of C5H5N is 1.7 x 10-9)?

A: pH is used to determine the concentration of hydronium ion.

Q: For H2CO3, Ka1 = 4.3 × 10–7, Ka2 = 4.7 × 10–11. What is the pH of a 0.36 M solution of carbonic…

A: We have to predict the pH of 0.36 M of carbonic acid .

Q: Calculate the pH of a 0.381 M NH, solution. NH, has a Kp = 1.8 x 10-.

A: pH: The negative logarithm of H+ ion concentration is known as pH. Ammonia in water behaves as a…

Q: A 0.495M solution of nitrous acid, HNO2, has a pH of 1.83. Calculate the value of Ka for nitrous…

A:

Q: Write the chemical equation and the Ka expression for theionization of each of the following acids…

A: a)  HBrO2 l → H+ aq +BrO2- aqand writing the Ka expression :Ka=H+ BrO2-HBrO2The reaction to…

Q: Calculate the pH of a 0.053 M NaF solution. (Ka for HF = 7.1 x 10−4.)

A: NaF is a salt of strong base (NaOH) and weak acid (HF)

Q: Calculate the pH of a solution of ammonium acctate. Given that: K, - 1.76 x 10, K,- 1.8 x 10 and K,…

A: A salt formed of weak acid and strong base is alkaline in nature and has a pH above 7 while a salt…

Q: What is the pH of a 0.40 M solution of sodium nitrate, NaNO2 ? The pKa for nitrous acid (HNO2) is…

A: Base dissociation constant Kb is utilized to determine the basic nature of a solution. It refers to…

Q: Calculate the pH of a solution that is prepared by dissolving 0.23 mol of hydrofluoric acid (HF) and…

A:

Q: Calculate the pKa of the weak acid HA, given that a solution of 0.65 M HA and 0.85 M NaA has a pH of…

A: The formula for calculating pKa of an acid with the given values of pH and concentrations of HA and…

Q: What will be the pH of a buffer solution containing an acid with a pKa of 5.4 with an acid…

A: We have to predict the pH of buffer solution.

Q: Calculate the pH of 1M solution of acedic acid (pKa = 4.76)?

A: The pH of the acetic acid solution can be calculated using the formula shown in belowpKa =…

Q: What is the pH of a solution of 0.300 M HNO₂ containing 0.170 M NaNO₂? (Ka of HNO₂ is 4.5 × 10⁻⁴)

A: pH of a solution is defined as the negative logarithm of H3O+ ion concentration. Here the given…

Q: What is the pH of (a) a 0.028 M solution of NaOH, (b) a 0.0011 M solution of Ca1OH22?

A: What is the pH of (a) a 0.028 M solution of NaOH, (b) a 0.0011 M solution of Ca(OH)2?

Q: 1. How many grams of Ca3(PO4)2 will be needed to prepare 500.0 mL of a 0.161-M solution of…

A:

Q: Hydrogen cyanide, HCN(aq), is a weak acid with pKa = 9.2. What is the pH of 2.5 M HCN(aq)?

A: The weak acids' strength is reflected by their dissociation constant (Ka) value. If they possess a…

Q: What are the concentrations of H3O+ and OH− in oranges that have a pH of 3.71?

A: pH :-  The negative logarithm to the base 10 of hydronium ion concentration expressed in mol/L of…

Q: The pH of a 0.10 M solution of Ni(NO3)2 is 5.0. Calculate the acid ionization constant of Ni(H 2O)…

A: [Ni(H2O)6]2+ is a Bronsted- Lowry acid. It releases H3O+ in solution.The acid ionization reaction is…

Q: What will be the pH of a solution containing 0.200 M NaH2PO4 and 0.200 M Na2HPO4? Ka(NaH2PO4) = 6.2…

A: Given,  Molar concentration of weak acid, NaH2PO4 or H2PO4- = [H2PO4-] = 0.200 M Molar concentration…

Q: calculate the ph of a 0.600 solution of Na2S

A: When Na2S dissolved in water - Na2S + 2H2O <===> 2NaOH + H2S Thus, sodium Sulfide is a salt of…

Q: Calculate the pH of a 0.450 M solution of NH4Cl (Kb for NH3 is 1.8 x 10-5)

A: Interpretation -  To determine the pH of 0.45M of NH4Cl solution when Kb of NH3 = 1.8 ×10-5 .…

Q: What is the pH of a 0.570 M solution of Ca(NO2)2 (Ka of HNO2 is 4.5 x 10-4)?

A:

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 a solution of HF (Ka = 6.8 x 10-4) has a pH of 3.65, calculatethe concentration of hydrofluoric…

A: The term pH of the solution is a measure of the acidity or the basicity of a given solution. More…

Q: What is the pH of a 0.20 M solution of CH3NH3NO3 at 25 °C? At this temperature, the Kp for CH3NH2 is…

A: Both given Ka and Kb are given, means this salt is a weak acid-weak base type salt. -PH or [H+] of…

Q: Calculate the pH of a 0.20 M solution of sodium acetate (NaCH3COO) given that the Ka of acetic acid…

A:

Q: What is the pH of a solution prepared by dissolving 0.450 mol of NH3 in sufficient water to make…

A: Given,  The pH of a solution prepared by dissolving 0.450 mol of NH3 in sufficient water to make…

Q: What is the pH of a 0.660 M solution of C3H;NHB (Kb of C5H5N is 1.7 x 10-9)?

A: Given information, [C5H5NHBr] = 0.660 M Kb of C5H5N = 1.7*10-9 Calculate: pH = ?

Q: The acid dissociation reaction for the weak acid butyric acid, HC4H¬O2 is given below. Its Ka is…

A: The dissociation reaction given is Assuming y concentration of HC4H7O2 dissociates as per the…

Q: What are the concentrations of H3O+ and OH− in oranges that have a pH of 3.97?

A:

Q: Calculate the pH of a 0.10 M solution of sodium acetate (NaCH3COO) given that the Ka of acetic acid…

A:

Q: Phenoxide ion (C,HsO) is a weak base, with Kp = 7.70 x 10. Calculate the pH of a 0.50 M aqueous…

A: Given that  Kb = 7.70 × 10-5  Peroxide ion is a weak base

Q: Calculate the pH of a of 0.100M KBRO solution. Ka for hypobromous acid, HBRO, is 2.0 x 10 6- 10.85…

A: Given: The concentration of the KBrO3 solution = 0.100 M The Ka for HBrO3 = 2.0 × 10-9 We have to…

Q: What is the pH of a solution that contains 0.135 M HCOOH and 0.215 M HCOONa? The pKa of formic acid…

A: pH of the solution is equal to the negative logarithm of hydronium ion while pOH is equal to the…

Q: Calculate the pH of a 0.1M solution of protonated methylamine (pKa =7)

A:

Q: Based on the pH measured for the solution of (NH4)2CO3, is NH4+ is a stronger acid or is CO2−3…

A: Given: To determine whether (NH4)2CO3  is strong acid or strong base.   Definition: (NH4)2CO3 is…

Q: A 0.200 M solution of nitrous acid (HNO2) had a pH of 2.07. What is the Ka value for nitrous acid.

A: Nitrous acid is a weak acid.

Q: Alizarin yellow R, Ka = 7.9 x 1012, is yellow in its protonated form (HX) and red in its ionized…

A: Alizarin yellow (R)  be a distinct orange color when,…

Q: At what pH is the concentration of a compound, with a pKa = 3.7, 10 times greater in its acidic form…

A: Given information: pKa = 3.7 [Acid] = 10[Base]

Q: Calculate the molar concentration of OH- in a 0.724 M solution of hypobromite ion 1BrO-; Kb = 4.0 *…

A: Since the BrO- will get hydrolysed by water as per the reaction => BrO- (aq) + H2O (l)…

Q: What is the pH when preparing a solution od 1 mol NaOH and 2 mol of solid NaH2PO4? The pKa's of…

A: Given: Moles of NaOH = 1 mol. Moles of NaH2PO4 = 2 mol.

Q: A buffer solution is 0.402 M in NaH2PO4 and 0.318 M in Na2HPO4. If Ka for H2PO4- is 6.2 x 10 -8,…

A: The solution has NaH2PO4 which will dissociate completely into ions Na+ and H2PO4-  Hence…

Q: Calculate the pH of 0.0470 M LiBrO. Ka of HBrO = 2.8 x 10-9

A: The molarity of LiBrO solution is = 0.0470 M The dissociation constant of the weak acid HBrO is =…

Q: What is the molar concenuration of hydronium [H,O*] ions in a solution prepared at 25°C with a pH of…

A: The acidic or basic nature of a solution is determined by its pH value. pH measures the…

Q: When preparing 0.075 M KCN solution, the equilibrium constant (Ka) was found to be equal to 49 x…

A:

Q: Given the following chemical reaction between a weak acid, HA, and water: НА(аg) Calculate the Ka of…

A: [HA] = 0.546 M  pH = 4.56  We need to determine value of Ka.