Some kidney stones form by the precipitation of calcium oxalate monohydrate (CaCO H₂O, Kp = 2.3×10). The pH of urine varies from 5.5 to 7.0, and the average [Ca] in urine is 2.6×103 M -13 (a) If the [oxalic acid] in urine is 3.0×10 M. will kidney stones form at pH = 5.5? (b) Will they form at pH = 7.0? (c) Vegetarians have a urine pH above 7. Are they more or less likely to form kidney stones?

Q: A buffer solution is made that is 0.498 M in HNO2 and 0.498 M in KNO2. If Ka for HNO2 is 4.50 x…

A:

Q: 3) Calculate the concentration (in M) of hydronium ions in a solution at 25.0 °C with a pOH of 3.58.…

A: Given:pOH of the solution = 3.58We have to determine the concentration (in M) of hydronium ions.

Q: Two solutions of an unknown slightly soluble salt, A(OH)2, were allowed to equilibrate—one at 25 °C…

A: Given: Volume of A(OH)2 =15 mL Concentration of HCl = 0.20 M At 25oC Volume of HCl =6.37 mL At 80oC…

Q: buffer solution is prepared from an unknown weak acid (HA) and its conjugate salt (NaA). If 500.00…

A: We will calculate pKa using henderson hasselbalch equation.

Q: 10.00 mL sample of 1.20 M HNO2 (analyte) (pKa = 3.34 and Ka = 4.57x10-4) is titrated with 1.20 M…

A: Given , pka = 3.34 Molarity of HNO2 = 1.20 M Volume of HNO2 = 10 mL Mmol of HNO2 = M × V   = 1.20…

Q: If the concentration of Mg2+ in the solution were 0.038 M. what minimum [OH-] triggers precipitation…

A: Given :  Concentration of Mg+2 = 0.038 M  Ksp of Mg(OH)2 = 2.06 x 10-13

Q: NH3 is a weak base (Kp = 1.8 × 10-5) and so the salt NH,Cl acts as a weak acid. What is the pH of a…

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Q: A volume of 40.0 mL of 0.100 M CH3COSH (aq) is titrated with 0.100 M NaOH(aq). What is the pH after…

A:

Q: If Kal for H2 CO3 is 4.20 x 10-, what is the pH of the buffer solution? pH = Write the net ionic…

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Q: A buffer solution is made that is 0.400 M in HNO2 and 0.400 M in NaNO2. If Ka for HNO2 is 4.50 ×…

A:

Q: Calculate the value of K_eq from the following equilibrium concentrations:  [FeNCS2+]=1.56×10−4 M ,…

A: At equilibrium , the ratio of concentration of products to reactants (each raised to the power…

Q: At 25 °C, only 0.0280 mol of the generic salt AB3 is soluble in 1.00 L of water. What is the ?sp of…

A: The equilibrium between the soluble ions and insoluble salt can be described by the solubility…

Q: A buffer solution is made that is 0.350 M in HNO2 and 0.350 M in NaNO2. If Ka for HNO2 is 4.50 ×…

A: A buffer is a solution which resists any change in pH on adding a small amount of acid or base.  It…

Q: A buffer solution is made that is 0.427 M in HNO2 and 0.427 M in KNO2. If K for HNO, is 4.50 x 10,…

A: Given-> Concentration of HNO2 = 0.427 M Concentration of KNO2= 0.427 M Ka(HNO2) = 4.50 × 10-4…

Q: A buffer solution is made that is 0.406 M in HNO2 and 0.406 M in NaNO2. -4 If Ka for HNO2 is 4.50 ×…

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Q: Phosphate Buffered Saline (PBS) is a commonly used buffer for experiments in biology because its pH…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base . it…

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: What is the equilibrium constant value for  NaC2H3O2 and how do you find its Kb?

A: Answer: Given compound is Sodium acetate which is the salt of weak acid (CH3COOH) and strong base…

Q: Consider the titration of 300.0 mL of 0.450 M NH3 (Kb = 1.8  10–5) with 0.450 M HNO3. At the…

A: pH of an aqueous solution of a salt of a weak base and strong acid = 7 - (pKb + logC)/2 Where, pKb =…

Q: CH, NH, is a weak base (Kp = 5.0 x 10-"), so the salt CH, NH, NO, acts as a weak acid. What is the…

A:

Q: A buffer solution is made that is 0.408 M in HClO and 0.408 M in NaClO. If Ka for HClO  is 3.50 x…

A:

Q: PH of diluted calcium hydroxide=7.01 1.) Hydronium ion concentration in dilute solution,M?…

A: The given pH of Ca(OH)2 = 7.01 Known,                        pH = -log[H+]               pOH = -…

Q: Of the following solutions, which has the highest buffering capacity?           (A) 0.72 M NaH2PO4…

A: Buffer capacity is directly proportional to the concentration of buffer solution. Higher the…

Q: Calculate the pH of a buffer solution composed of 0.15M HF and 0.15M NaF. Ka for HF is 6.8 x 10-4.…

A: The objective of the question is to calculate the pH of a buffer solution composed of 0.15M HF and…

Q: What is the pH of 0.45 M acetic acid to 1.00 L of which 2.80 g of sodium acetate, NaCH3 CO2 , has…

A: A buffer solution is made of a weak acid amd Its conjugate base. Here acetic acid is a weak acid…

Q: A solution was prepared with 0.482 mol of pyridinium fluoride (C, H, NHF) and enough water to make a…

A: Given: Ka= 6.30×10-4 for 0.482M Kb=1.70×10-4 for 1.00L Solution-

Q: At 22 °C, an excess amount of a generic metal hydroxide, M(OH),, is mixed with pure water. The…

A: M(OH)2  ↔  M2+   +  2 OH-Expression for Ksp ,Ksp = [M2+] [OH-]2  Find out the individual…

Q: IS IS If Kal for H2S is 1.00 x 10, what is the pH of the buffer solution? pH = Write the net ionic…

A: The question is based on the concept of buffer solution.   A buffer is a solution which resist any…

Q: What will happen if the pH of the following equilibrium system is increased? H*(aq) + 2CrO4²a 2- aq)…

A: So option a is correct that is the solution will turn yellow

Q: An analytical chemist is titrating 159.5 mL of a 1.200 M solution of nitrous acid (HNO,) with a…

A: The is a neutralization reaction which takes place as,…

Q: When a 16.0 mL sample of a 0.469 M aqueous nitrous acid solution is titrated with a 0.460 M aqueous…

A:

Q: 5.) A typical aspirin contains 324 mg of aspirin (HC,H,O4) with Ka = 2.8 x 104. If you dissolve two…

A: pH = -log[H+] Aspirin is a weak acid. For a weak acid solution: [H+] = (Ka x C)1/2 Where, C = molar…

Q: A 0.4M solution of NH3 (1L in total) contains 12.78 g of NH,CI. Calculate the ApH observed if we…

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Q: A 0.0420 L volume of 0.11 M hypobromous acid (HBrO), a weak acid with Ka = 2.8 ✕ 10−9, is titrated…

A:

Q: The desired pH is 6.4 in creating a buffer system/buffer solution of about 50-60mL. Therefore, a…

A: A buffer solution is made of a weak acid and the salt of that weak acid. The pH of the buffer does…

Q: A student is required to determine the pH of a water sample that was believed to be contaminated…

A: It is a strong base that means in H2O it will be completely dissociates as Mg+2 and 2 HO-

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.