3. Calculate the molar amount AND the mass (in grams) of sodium acetate (CH-COONa) that must be added to a 1.00-L solution of 0.050 M acetic acid in order to have a buffer with pH <<= 5.20. K.(CH₂COOH) = 1.8 x 10-5 Answers: mol CH:COONa grams CH3COONa:

Q: A buffer is made using 100.0 mL of 0.200 M CH3 CH2 COOH (propanoic acid) and 100.0 mL of 0.100 M…

A:

Q: In an experiment, a student is attempting to dissolve Lead Bromide (PbBr2) into a 1 L solution that…

A:

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: Find the solubility of lead(II) sulfate in 0.39 M Na2SO4 (aq). The solubility product of lead (II)…

A: Given , Solubility product of lead (II) sulfate 1.6×10-8

Q: mól dm (b) After carrying out the titration in (a), the student left the resulting solution to…

A: B)   (i) water of crystallisation

Q: Will a precipitate (ppt) form when 300.0 mL of 5.0 × 10–5M AgNO3 are added to 200.0 mL of 2.5 ×…

A: The solubility product is a kind of equilibrium constant and its value depends on temperature.

Q: A buffer is prepared with H₂CO3 and NaHCO, What is the correct net ionic equation describing what…

A: Buffer is mixture of weak acid with its conjugate base and vice versa. Buffer maintains the pH of…

Q: A solution contains 7.94×10-3 M sodium phosphate and 1.44×10-2 M sodium chloride. Solid silver…

A: When ionic product is higher than that of the solubility product, the precipitation occurs.

Q: The stockroom contains 1M NaAc (Sodium acetate), 1M HAc (Acetic acid), distilled water and strong…

A: ANSWER : Initial pH = 4.75   ,    pKa (CH3COOH)  = 4.75  We know that pH =  pKa +…

Q: What is the change in ph when 1.0ml of 1m hcl is added to  1) 1.000L of pure water and to  2)…

A:

Q: For the following, please answer all the questions. Suppose the Ksp value for lead sulfide (PbS) is…

A: Let S be the solubility of PbS  in water.It is a AB2 type of salt. Hence the formula of solubility…

Q: A solution contains 7.39x10-³ M sodium carbonate and 6.78x10-3 M sodium phosphate. Solid calcium…

A: The question is based on the concept of solubility product principle. It states that when a weak…

Q: A 15.00 mL solution of 0.100 M sodium hydroxide (NaOH) is being titrated with 0.250 M hydrobromic…

A: we have to calculate the total volume of solution at equivalence point.

Q: 0.010 M CaCl2 (Ksp 4.68 x 10-6 for Ca(OH)2) Express your answer In molarity to two significant…

A: Chemical equation:-  Ca(OH)2 = Ca2+ + 2OH-

Q: 13. A buffer solution is prepared using 0.500 mol · L'acetate ion and 0.500 mol L acetic acid.…

A: A buffer solution is a solution that resists a change in its pH on the addition of a small amount of…

Q: Prior to dissolving KHP, you are instructed to boil the distilled water. By boiling the water, you…

A: Distilled water is an active absorber and absorbs carbon dioxide on contact with air, making it…

Q: A buffer solution that is made with equal volumes of 2.5M citric acid and 0.5M sodium citrate?  The…

A: The volumes of citric acid and sodium citrate are equal.  Ka of citric acid = 8.4 x 10-4 The…

Q: 5. You use a 0.1380 M HCl to standardize an NaOH solution. The burets below show initial and final…

A:

Q: Consider the following reaction:  CH3COOH(aq) + OH-(aq) ------------> CH3COO-(aq)+H2O (l) How much…

A: Buffer problems are best solved using the Henderson-Hasselbalch equation:pH = pKa + log ([A-] /…

Q: A student determines that an aqueous solution that contains 0.254 M sodium acetate and 0.417 M…

A: The equilibrium constant can be written as the ratio of concentration of products to the…

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.