What concentration of KNO2 must be added, at 25 degrees Celsius, to 0.50 M HNO2 to result in a solution whose pH is 3.49?

Q: What is the original molarity of a solution of ammonia whose pH is 10.48?

A: The original molarity of solution of ammonia whose pH is the 10.48 is calculated as follows

Q: What is the concentration of a solution of (a) KOH for whichthe pH is 11.89, (b) Ca(OH)2 for which…

A: We know that, the pH of the solution is equal to the negative log10 of the hydrogen ion…

Q: How many grams of hNO3 must be dissolved to make 25 L of solution that has a ph of 1.5?

A: HNO3 is strong acid. Calculate the concentration of H+ ions,              pH = - log[H+][H+] =…

Q: What is the pH of a 0.0257 M solution of NaOH (γγOH- = 0.889)?

A:

Q: What is the pH of a solution prepared by adding 25.0 mL of 0.10 M HNO3 to 40.0 mL of 0.10 M NH3(aq)?

A: The reaction takes place in the solution prepared by mixing HNO3 and NH3 solutions is written…

Q: Calculate the pH of a solution that is 0.0729 M LiC2H3O2 at 25°C.

A: LiC2H3O2 ( Lithium acetate) is the salt of a weak acid and strong base.   LiC2H3O2 → CH3COO- +…

Q: How many moles of NO3 - are present in 250.0 mL of a nitric acid solution having a pH of 5.10?

A: Nitric acid is strong acid , having dissociation constant equal to 1. pH of any substance is…

Q: What volume of a concentrated HCl solution, which is 36.0% HCl by mass and has a density of 1.179…

A:

Q: Calculate the pH of a solution (aq., 25 oC) when 25.00 mL of 0.250 M KOH is added to 25.00 mL of…

A: Answer :-  pH = 4.20  The pH of a solution, when 25.00 mL of 0.250 M KOH is added to 25.00 mL of…

Q: what is the pH of a solution obtained by mixing 225 mL of 0.680 M HCl with 565 mL of an HCl solution…

A: Here, we have to calculate the pH of a solution obtained by mixing 225 mL of 0.680 M HCl with 565 mL…

Q: If an acid, HA, dissociates to 0.1% when added at a final concentration of 0.05M in water, that is:…

A: 1- First calculate the H3O+ ion concentration :  [H3O+] = ( Concentration ) × ( Degree of…

Q: Which of these solutions has the lowest pH? Rank these solutions: 0.10 M HIO, 0.10 M H2SO4, 0.10 M…

A:

Q: em101 The pH of a 0.0049 M solution of Ca(OH), is

A: Given that: molarity of Ca(OH)2 = 0.0049 M To find: pH of 0.0049 M Ca(OH)2 solution?

Q: (a) When 6.3 g of nitric acid are dissolved in water to produce 500.0 mL of solution, what is the…

A: pH of solution is defined as the concentration of hydronium ion H3O+ present in the solution.

Q: Calculate the pH of a solution prepared by dissolving 5.00 g of NaCIO in 400.0 mL of water.

A: Mass of NaClO  = 5.00g Volume of solution = 400.0 mL=400 ×10-3L Ka = 2.9 × 10-8

Q: What is the pH of a solution consisting of 0.70 M HC2H3O2 and 0.60 M NaC2H3O2 ? The Ka of HC,H3O2 is…

A:

Q: A solution of sodium acetate (NaCH3COO0 has a pH of9.70. What is the molarity of the solution?

A:

Q: Calculate the hydroxide ion concentration, [OH], for a solution with a pH of 5.1I3.

A: Given, pH of solution =5.13we are asked to calculate the concentration of [OH-]

Q: What is the pH of a 0.258M solution of NaIO3?  Please round the answer to the correct number of…

A: NaIO3 + H2O = NaOH + HIO3  So, aqueous solution of NaIO3 is a salt hydrolysis case for weak acid…

Q: What is the pH of a solution that contains 0.561g of dissolved KOH in 10.0L of aqueous solution?

A: Mass of KOH =0.561 g Volume of solution = 10 L Molar mass of KOH = 56.10 g/mol pH of solution = ?

Q: Calculate the pH of a solution that is 0.0736 M KC2H3O2  at 25°C.

A:

Q: What is the approximate pH of a 0.02 M solution of a strong monoprotic acid? Of a 0.02 M solution of…

A: Molarity of monoprotic acid=0.02MMolarity of Strong base(KOH)=0.02M

Q: Calculate the molarity of an phosphoricacid (H3PO4) solution if 75.00 mL is completely neutralized…

A:

Q: What is the pH of a solution containing 0.30 M HCOOH and 0.52 M HCOO-K?

A: Weak acid is the one which undergoes partial dissociation. Formic acid (HCOOH) is a weak acid. The…

Q: A 75.00-mL portion of a solution that is 0.0460 M in HClO4 is treated with 150.00 mL of 0.0230 M…

A: Acid reacts with base to form salt and water. The given acid is HClO4 and base is KOH.

Q: Calculate the pH of a 0.14 M ammonium chloride, NH4Cl, solution. The Kb of ammonia, NH3, is 1.8 ×…

A: Given information: [NH4Cl] = 0.14 M Kb of ammonia, NH3, is 1.8 × 10−5 M

Q: What is the pH of a 8.1 × 10-6 M KOH solution?

A: The pH scale is introduced by the scientist Sorensen in order to express the [H3O+] ion of a…

Q: At 25 °C, how many dissociated OH– ions are there in 1291 mL of an aqueous solution whose pH is…

A: The number of dissociated hydroxide ions are present in given solution is determined as,

Q: What is the pH of a solution that is 0.34 M KOCN and 0.14 M HOCN (cyanic acid)?

A:

Q: What is the pH of a solution containing 0.25 M HCOOH and 0.51 M HCOOK?

A:

Q: Calculate the pH of a solution made by adding 2.50 g of lithium oxide 1Li2O2 to enough water to make…

A: The pH of a solution is a measure of hydrogen ion concentration, which in turn is a measure of its…

Q: How many grams of KOH would you have to add to a 2.1 M/450 ml sample of HCl to make the final pH 11?

A: Balanced Reaction HCl + NaOH --> NaCl + H2O HCl reacts with NaOH to produce water and NaCl

Q: Determine the [H*]. JOH-], and pOH of a solution with a pH of 11.62 at 25 °C. [H*] = M [OH] = %3D…

A:

Q: What is the pH of a solution that is prepared by adding 4.0 mL of 0.50 M NAOH(aq) and 4.0 mL of 0.40…

A:

Q: A solution of sodium acetate 1NaCH3COO2 has a pH of 9.70. What is the molarity of the solution?

A: pH scale is used to measure the acidity or basicity of the solution. If the solution is acidic in…

Q: How many moles of NO3- are present in 250.0mL of a nitric acid solution having a pH of 5.10?

A:

Q: Calculate the hydroxide ion concentration in an aqueous solution with a pH of 9.85 at 25°C.

A:

Q: 1. What is pH of a 0.040M solution of HC104? 2. An aqueous solution of HNO3 has a pH of 2.66. What…

A:

Q: What is the pH of a 0.690 M solution of NACN (Ka of HCN is 4.9 x 10 10)?

A: Given, The concentration of the solution of NaCN = 0.690 M Acid dissociation constant (Ka) = 4.9 x…

Q: What mass in grams of nitric acid is present in 700 mL of a solution with a pH of 1.866?

A:

Q: Lemon juice has a pH of about 2. What [H3O+] is this?

A: Given that the pH of lemon juice is 2. To calculate the concentration of H3O+ ions in the lemon…

Q: How many grams of NaHCO3 must be added to 4 g K2CO3 to give a pH of 10.80 in 500 ml total solution?

A: Henderson-Hasselbach equation is given by: pH = pKa + logA-HAwhere [HA] is the concentration of the…

Q: What is the pH of a solution obtained by adding 219 mL of 0.309 M HCl to 905 mL of a HNO3 solution…

A: We have given that  Concentration of HCl = M1 = 0.309 M  Volume of HCl = V1 = 219 mL  Volume of HNO3…

Q: The pH of an aqueous solution of 0.390 M methylamine (a weak base with the formula CH;NH2) is

A: 12.09

Q: _s the pH of an aqueous solution that is 0.1M NH4C1?

A:

Q: A certain weak base has a Kb of 8.60×10−7M. What concentration of this base will produce a pH of…

A:

Q: The pH of 0.55 M aqueous solution ammonia HN3 at 25.0 degree C is 11.50. What is the value of Kb for…

A: NOTE : You have given HN3 instead of NH3. Since the pH is in basic zone, hence the specie will be…

Q: What is the pH of a 4.9 × 10-6 M KOH solution?

A: given :- concentration of KOH solution = 4.9 × 10-6 M  to calculate :- pH of solution

Ionic Equilibrium

Chemical equilibrium and ionic equilibrium are two major concepts in chemistry. Ionic equilibrium deals with the equilibrium involved in an ionization process while chemical equilibrium deals with the equilibrium during a chemical change. Ionic equilibrium is established between the ions and unionized species in a system. Understanding the concept of ionic equilibrium is very important to answer the questions related to certain chemical reactions in chemistry.

Arrhenius Acid

Arrhenius acid act as a good electrolyte as it dissociates to its respective ions in the aqueous solutions. Keeping it similar to the general acid properties, Arrhenius acid also neutralizes bases and turns litmus paper into red. 

Bronsted Lowry Base In Inorganic Chemistry

Bronsted-Lowry base in inorganic chemistry is any chemical substance that can accept a proton from the other chemical substance it is reacting with.