Ascorbic acid, H2C6H6O6, is a diprotic acid with Ka1 = 7.9 * 10-5 and Ka2 = 1.6 * 10-12.  What is the pH of a 0.709 M solution of ascorbic acid?

Q: 8. Classify as spontaneous or no reaction. If spontaneous, write out the complete reaction. a) Ni²+…

A: Here we have to predict whether the following given redox reactions are spontaneous or not.

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 weak acid solution ([HA], > 100 • K₂). Calculate the pH of a 0.437 M aqueous…

A: Given :Ka = 4.5 × 10-4Initial concentration of HNO2​ = 0.437 MThe dissociation reaction of nitrous…

Q: CH₂NH₂ is a weak base (K₁ = 5.0 x 10-4), so the salt CH₂NH₂NO3 acts as a weak acid. What is the pH…

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Q: 8. Propanoic acid (CH₂CH₂COOH, which we simplify to HPr) is a carboxylic acid whose salts are used…

A: Molarity of propanoic acid solution is 0.10M  Acid dissociation constant Ka is 1.3 * 10-5  We have…

Q: Calculate the pH of a solution that has an ammonium chloride concentration of 0.043 M and an ammonia…

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Q: Carbonic acid, H2CO3 is a diprotic acid with Ka1 = 4.3 x 10-7 and Ka2 = 5.6 x 10-11. What is the pH…

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Q: Calculate the pH of a 0.40 M solution of benzoic acid, C6H5COOH? (Ka-6.3 x 10-5) What is the %…

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Q: Calculate the pH of a 5.3 x 10-3-M solution of H2S04 (Ka, = 1.2 x 10-2). pH =

A: Given-> Concentration of H2SO4 = 5.3 × 10-3 M

Q: 1) Calculate the pH (aq., 25 °C) of a 0.073 M Novocaine (C13H21O2N2CI) solution, which is the salt…

A: Solving only first question in accordance with guidelines. We will first draw ICE table and then…

Q: A diprotic acid (H₂A) has Kal = 4.28 x 10-7 and K₁2 = 5.45 x 10-¹1. What is the pH of a 0.431 M H₂A…

A: Firstly we find the concentration of H+ ion. Then we find the pH. Shown in step 2.

Q: Do you think the pH of 1.0 M tri-methyl ammonium (CH3)3NH", pKa 9.80, will be higher or lower than…

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Q: Given the weak acid, boric acid (H3BO3), calculate the pH and pOH of a 4M boric acid solution. Ka =…

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Q: What concentration of oxalic acid, HOOCCOOH(H2A), will have a pH of 2.50 (pKa1 = 1.25; pKa2 = 4.14)?

A: Given:pH = 2.5pKa1 = 1.25pka2 = 4.14The pH of a solution is determined using the negative logarithm…

Q: What is the pH of a 0.220 M solution of aniline (C₆H₅NH₂, Kb = 4.3 × 10⁻¹⁰)?

A: Aniline is a weak base.  C6H5NH2+H2O⇔C6H5NH3++OH-      1                                  0…

Q: For H2CO3, Ka1 = 4.3 x 10-7, K22 = 4.7 × 10-11 What is the pH of a 0.15 M solution of carbonic acid?

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Q: What is the pH of a 0.190 M C6H5CO2H M solution if the K₂ of C6H5CO2H is 6.5 x 10-5?

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Q: What is the pH of a 0.470 M solution of pyridine if Kb = 1.5x10^-9?

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Q: What is the pH of a 0.290 M solution of aniline (C6H5NH2, Kb = 4.3 x 10-10)?

A: In the given question we have to calculate the pH of Aniline. concentration of Aniline = 0.290 M  Kb…

Q: What is the hydronium-ion concentration of a 4.64 ✕ 10−4 M solution of p-bromobenzoic acid,…

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Q: At 25 °C, the methylammonium ion, CH3NH3*, has a Ka of 2.0 x 10-¹¹. What is the pH of a 0.45 mol.L-¹…

A: Methylamine CH3NH2 is a weak base It is not dissociate completely in aqueous solution…

Q: Chlorine gas used for disinfection combines with water to form hypochlorous acid (HOCI). The HOCI…

A: Given, Reversible reaction : HOCl ⇌ H+ + OCl- K=2.7×10-8

Q: Strychnine (in contaminated wine) may have been used to poison Alexander the Great.  Strychnine…

A: The solution is provided below:

Q: What is the pH of a 0.1250 M CH3NH3Br? Kb for CH3NH2 is 3.70e-4.

A: Given,  The pH of a 0.1250 M CH3NH3Br is : Kb for CH3NH2 is 3.70e-4.

Q: Perform the following to determine the pH of a lactic acid solution. Write the acid/base reaction…

A: pH is negative logarithm of the hydronium ion concentration in a solution. Its value ranges from…

Q: Calculate the pH and the pOH of these solutions:   (c) 0.957 M HC2H3O2 (Ka = 1.8 x 10-5) pH =   pOH…

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Q: What is the pH of a 0.17 M weak acid solution? The KA of the weak acid is 2.1 x 10-5.

A: Given :-  Initial concentration of weak acid = 0.17 M  Ka for acid = 2.1 × 10-5  To be calculated :-…

Q: What is the pH of a 0.290 M solution of aniline (C₆H₅NH₂, Kb = 4.3 × 10⁻¹⁰)?

A: Find PH using ICE table and some farmula

Q: Let's assume that there is 400 μatm of pCO2 in our atmosphere. Assuming there is nothing else in the…

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Q: What is the pH of an aqueous solution with .5 M NH3 & .45 M NH4Cl?  Kb=1.78 x 10-5

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Q: For the diprotic weak acid H,A, Kal = 3.2 x 10 and Ka2 = 6.3 x 10-9 What is the pH of a 0.0800 M…

A: For H2AKa1 = Ka2 = Concentration of H2A = 0.0800 MWe have to determine the pH of the solution and…

Q: The Ka of a weak acid is 3.33 x 10-5, what is the pKb of it's conjugate base?

A: The objective of this question is to calculate the pKb of the conjugate base of a weak acid given…

Q: 13.3.00 g of pure acetic acid (CH3COOH) is diluted to 25.0 L, What is the PH of the solution? Ka =…

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Q: the leaves of the rhubarb plant contain high concentrations of diprotic oxalic acid (HOOCCOOH) and…

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Q: Please answer these questions on your Page 8 (a) 1 ) HA(aq) is a weak acid with a dissociation…

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Q: Calculate the percentage of pyridine (C5H5N) that forms pyridinium ion, C5H5NH+ , in a 0.10 M…

A: Pyridine is a weak base which dissolves in water, dissociates partially into ions. The ions will be…

Q: 6. (i) Define pH in words. The strong acid HCla has a pH value of 1, use the following equation for…

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Q: I'm not sure how to answer this question. I know that the first two answers are correct, but I don't…

A: The hydronium ion concentration can be calculated using ICE table as,

Q: Calculate the pH of a 0.22 M codeine solution (Kb = 1.6ã10−6).

A: The value of Kb for the given weak base is = 1.6x10-6 The concentration of the base solution is =…

Q: Calculate the pH of a 8.3 x 10-3-M solution of H2SO4 (K, = 1.2 x 10-2). %3D pH =

A: The given acid is H2SO4. It dissociates in solution to give two moles of H+ ions. The given…

Q: Find the pH of a 0.100 M ascorbic acid (H2C6H6O6) solution.

A: Weak acid undergoes moderate dissociation and produce ions when it gets dissolved in aqueous…

Q: What is the pH of a 0.130 M solution of aniline (C₆H₅NH₂, Kb = 4.3 × 10⁻¹⁰)?

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Q: Ascorbic acid (H₂CH₂O) is a diprotic acid. The acid dissocation constants for H₂CH₂O are Kal = 8.00…

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Q: Hydroxylamine, HONH₂, readily forms salts such as hydroxylamine hydrochloride which are used as…

A: According to the question we have, The concentration of the hydroxylamine (HONH2) is given by (c) =…

Q: Ascorbic acid (H,C,H,O,) is a diprotic acid. The acid dissocation constants for H,C,H,O, are Kal =…

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Q: A diprotic acid (H₂A) has Kal = 4.54 x 10-7 and K₁2 = 5.59 x 10-11. What is the pH of a 0.396 M H₂A…

A: we have to calculate the pH of 0 .396 M diprotic weak acid

Q: (a) Using the expression Ka=[H+][A−]/[HA], explain how to determine which solution has the lower pH,…

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Q: , found in horse urine. Calculate the pH of a 0.250 M hippuric a ssium hippurate salt, KC9H&NO3, was…

A: pH of the solution is 3.41.

Q: Carbonic acid (H;CO:) is widely used in the production of sodas, soft drinks, sparkling wines, and…

A: a.) Carbonic acid is a diprotic acid so it have two acidic protons and hence two ionization…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.