✓ ?? 14. Two groups of students were asked to check the concentration of ammonia in a particular brand of cleaning product because there had been complaints about that brand. The students placed a 25.0mL sample of cleaning product in a volumetric flask and made it up to 250mL using distilled water. They then performed a titration by using 25.0mL of the diluted ammonia solution in a conical flask and 0.10 moll-¹ standardised hydrochloric acid in a burette. One group used bromocresol green (pH range 4.0-5.6) as the indicator and obtained the following results: Titration Volume of acid 1st 23.2 added (mL) 2nd 22.9 3rd 22.8 4th 22.9 a) Calculate the concentration of the diluted sample. b) Calculate the concentration of ammonia in 1L of the original sample.

Q: 1. Consider the titration of 25.00 mL of 0.150 M acetic acid (HC2H3O2, Ka = 1.8 × 10−5 ) (aq) with…

A: “Since you have posted a question with multiple sub-parts, we will solve the first three subparts…

Q: The Solubility Product Constant for zinc carbonate is 1.5 × 10-¹¹. Solid potassium carbonate is…

A: We will first determine the Ksp expression. and we will get the concentration of Zn2+ from the…

Q: The solubility of BaCrO, in water at 25 °C is measured to be 0.0037 Round your answer to 2…

A:

Q: North of Kingston you discover a hidden mountain and name it Mt. Kevinmanjaro, which weighs 1x1012…

A: Mass of CaCO3 (mountain) = 1 x 1012 kg  Ksp of CaCO3 = 3.3 × 10–9   Molecular mass of CaCO3 = 100…

Q: What are the acceptable levels of chloride in boiler water?

A: Chloride level is very important in boiler water. If level of chloride is high then  it corrode and…

Q: Consider the reaction IO (aq) + 2H₂O (1) H₁IO (aq); Kc = 3.5 × 10-² = If you start with 24.0 mL of a…

A:

Q: A 1.00 liter solution contains 0.53 moles nitrous acid and 0.41 moles potassium nitrite. If 0.20…

A:

Q: Initial (M) Change (M) Equilibrium (M) Determine the value of Ksp for AglO, by constructing an ICE…

A: Answer:

Q: Titration of 0.1756 g primary standard Na2C2O4 required 32.04 mL of a potassium permanganate…

A:

Q: Laboratory Experiments 75 5. Sodium carbonate is a reagent that may be used to standardize acids in…

A:

Q: The solubility of Ag,CrO, in water at 25 °C is measured to be 0.022 Use this information to…

A: Given-> Solubility = 0.022 g/L

Q: If 12.50 mL of a KOH(aq) solution is required to titrate 0.218 g of KHP, what is the molar…

A: weight in g = 1 molmolecular weight in g×weight in g                     = Number of molsVolume in…

Q: What is the molar solubility (in mols/L)of silver chloride in 2.00 M NH3(aq) given that Ksp of AgCI…

A:

Q: A 0.3285 g sample containing chloride and inert material is titrated with 0.1012 M AgNO3, requiring…

A:

Q: 1) Calculate the pH of a solution prepared by dissolving 1.45 g of sodium acetate, CH3COONa, in 50.0…

A:

Q: O CHEMICAL REACTIONS Solving for a reactant in solution Sodium hydrogen carbonate (NaHCO3), also…

A:

Q: a) A nitrous acid/sodium nitrite buffer solution is prepared.  20.0 mL of 6.50 M nitrous acid (HNO2)…

A: Q5:  #(a):  Volume of 6.50 M HNO2 added = 20.0 mL * (1L/1000 mL) = 0.0200 L  => Moles of HNO2…

Q: ▼ Calculate the molar solubility of barium fluoride (for which Ksp = 2.45 x 10-5) in each liquid or…

A:

Q: aturated Br- concentration in aq lead bromide is 2.37×10^-2. The soluability product constant for…

A:

Q: 2

A:

Q: Consider an amphoteric hydroxide, M(OH), (s), where M is a generic metal. M(OH), (s) = M²+(aq) + 2…

A: The reaction is as follows: M(OH)2(s)⇌M2+(aq)+2OH-(aq) 1) Calculation of concentration of OH- at pH…

Q: magnesium nitrate, Mg(NO,),(aq), solution

A: This question is related to precipitation.