An aqueous solution is made of the diprotic acid H2A to a concentration of 0.15 M H2A. Ka1 = 3.0 x 10-4 and Ka2 = 2.5 x 10-9 What is the [A2-] in this solution?

Q: A solution has [H3O+][H3O+] = 8.0×10−5 MM . Use the ion product constant of water…

A: Two numerical problems based on ionic product of water, which are to be accomplished.

Q: given the avaerage Molarity of NaOH as 1.02 x10^-1 , and the following volumes from three…

A: In the given question, the information about acid is missing so they are assumed.The acid is…

Q: Experiment 1: Determination of the solubility of potassium bitartrate in water. NaOH concentration…

A: Bitartarate ion (HC4H4O6-) is a monoprotic acid, and NaOH(aq) is a monoacidic base. Hence they…

Q: Determining the molarity (M) of acetic acid in vinegar. Using a volumetric pipette, you pipet…

A: Given data,Molarity of OH-=0.1932MVolume of OH-=11.96mL=0.01196LVolume of CH3COOH=5.0mL

Q: An aqueous solution contains 0.050 M of methylamine. The concentration of H+ in this solution is…

A: Methylamine is a weak base. Hence it produces OH- ions in the solution as per the reaction  CH3NH2…

Q: In a 0.55 mM aqueous solution of butanoic acid (C,H,CO,H), what is the percentage of butanoic acid…

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Q: 07-13: The diprotic acid H₂L has Kor 1.4 x 10" and Ka 1.2 x 10-10 97-Calculate the molarity of H" of…

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Q: In Part A of this experiment, you will be standardizing a solution of sodium hydroxide (N2OH)…

A: We have to give the no. Of grams of CH3COOH

Q: Calculate the concentration of SCN in each of the following standard solutions. Use 0.0500 M Fe3+…

A: a) Initial molarity of SCN-, M1 = 0.002 M Initial volume, V1 = 1.00 mL Final molarity of SCN-, M2 =…

Q: What volume in mL of a 0.113 M Ba(OH)2 solution is needed to neutralize 25.0 mL of a 0.103 M HCl…

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Q: If 34.00 ml of 0.200M NaOH is needed to titrate a 10.00ml sulfuric acid solution (H2SO4) to the end…

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Q: In a 5.9M aqueous solution of benzoic acid (C,H,CO,H), what is the percentage of benzoic acid that…

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Q: What is the percent hydrolysis of a 100.0 mL 0.0520 M NaCN solution if Kw = 1.00x10^-14 and Ka(HCN)…

A: Given,  Volume of NaCN in mL = 100.0 mL  Molarity of NaCN = C = 0.0520 M  Ionization constant of…

Q: - 6 An aqueous solution at 25 °C has a H,0' concentration of 6. x 10 °M. Calculate the OH…

A: Ionic-product constant for water: It is the hydronium ion concentration times the concentration…

Q: 3.1 The density of a gas is 0.080 g cm, convert the density to SI unit (kg m-3) 3.2 What is the…

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Q: a) Calculate [H3O+] of the following polyprotic acid solution: 0.115 M H2CO3. Express your answer…

A: (a) given,Concentration of H2CO3 = 0.115 MThe first step in the dissociation of H2CO3 can be written…

Q: What volume of 0.25M NaOH solution is needed to react with 50mL of 0.125M H2SO4?

A: The reaction given is : 2 NaOH (aq) + H2SO4 (aq) → Na2SO4 (aq) + 2H2O The reaction tells that to…

Q: Determine the concentrations of the cation and anion in each aqueous solution.  Assume complete…

A: The concentration of a solution that contains molecular compound tells about the concentration of…

Q: Is this calculation correct? See image below. The values/runs from the experiment were: 29.9M,…

A: Yes the calculation is correct.

Q: Each row of the table below describes an aqueous solution at about 25 °C. Complete the table. That…

A: pH measures the strength of Acidic and Basic Nature.  pH = - log [H3O+] pH < 7 means Acidic…

Q: Q3/ The following information is given for the solution of a normal hydrochloric acid i. H* IH2 (Zn)…

A: Sacrificial anodes protect metals from corrosion, it works by oxidizing more quickly than the metal.…

Q: What is the pH of the solution after mixing 0.193 g of Mg(OH)2 (MW=58.321 g/mol) with 12.4 mL of…

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Q: The problem solved above needs some clarification In step 3  the phosphoric acid molarity is 0.0025…

A: Answer: This question is based on the fundamental understanding of concentration terms. Relation…

Q: The equivalent conductance of a solution is a measure of its ability to conduct electricity. NaOH…

A: Equivalent conductance is defined as the product of specific conductance and the volume (in mL) of…

Q: How many grams of citric acid and mL of 1M sodium hydroxide must be added to 500 mL of water to…

A: When the total solute concentration is 1 mM, [Citric acid]+[NaOH]=1×10-3 M…

Q: What is the percentage of total acid expressed as acetic acid in a sample of vinegar if 4.0g of…

A: A multiple choice question based on acid-base titration that is to be accomplished.

Q: What is the pH of the solution after mixing 0.188 g of Mg(OH)2 (MW=58.321 g/mol) with 18.1 mL of…

A: Given,  Mass of Mg(OH)2 = 0.188 g  Molar mass of Mg(OH)2 = 58.321 g/mole  Volume of HCl = 18.1 mL…

Q: A HNO3  solution has a sp.gr. of 1.42 and is 70.0 % (w/w) HNO3 . How many ml of this solution  is…

A: Answer:- This question is answered by using the simple concept of conversion of one concentration…

Q: Can you please explain to me how they the got 27.1% under the percent recovery correction?

A: The chemical equation is as follows:

Q: 07-13: The diprotic acid H₂1. has Kor 1.4 x 10% and Kaz-1.2 x 10-10 97-Calculate the molarity of H…

A: #Q.10: Given H2L is a weak diprotic acid with Ka1 = 1.4*10-6 and Ka2 = 1.2*10-10

Q: Calculate [H3O*] in the following aqueous solution at 25°C: [OH¯]=1.9x10-9 M . Express your answer…

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Q: Calculate [Hg0+] in M of a 0.177 M NaOH solution at 25°C. Please express the answer in scientific…

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Q: 10-13. How many milliliters of 0.202 M NaOH should be added to 25.0 mL of 0.023 3 M salicylic acid…

A: We know that  pH of buffer is  pH = pka + log {[salt] / [ acid]}

Q: A solution has [H3O+][H3O+] = 8.0×10−5 MM . Use the ion product constant of water…

A: Since Kw = [H3O+] x [OH-] =  10-14             At room temperature Since the [H3O+] = 8.0×10−5  M

Q: To do a chemistry experiment, you need to prepare 350mL of 0.25M NaOH. There is one small problem:…

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Q: امتحان بالتجربة الرابعة المرحلة الأولى مسائي Answer these questions: Examination time: 30 min Q1//…

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Q: In a 1.6M aqueous solution of crotonic acid (c,H,CO,H), what is the percentage of crotonic acid that…

A: A weak acid are those which does not dissociate  completely to furnish H+ ions    we are required to…

Q: Boric acid (H3BO3) is initially 3 moles/liter. Fifty milliliters of this acid solution is dikuted to…

A: Normality(N) is defined as the grams equivalent of solute present in 1000mL of the solution. N=Grams…

Q: Be sure to answer all parts. Calculate the concentrations of all the species in a 0.145 M Na2CO3…

A: Given: 0.145 M Na2CO3 solution. For H₂CO3,, Ka1 = 4.2 × 10-7 and  Ka2 = 4.8 × 10-11 To Calculate:…

Q: How much 0.600 N base must be added to 750 mL of a 0.200 N base in order for the solution to be…

A: Given: normality of base 1(N1)=0.600 Nnormality of base 2(N2)=0.200 Nnormality of final…

Q: Volume (mL) of 0.01 M NaOH usęd to reach the endpoint Concentration (M) of salicylic acid solution

A: Using equation : M1×V1 = M2×V2   -------(1) Where,  M1 is concentration of unknown acid,  V1 is…

Q: In a 0.60 mM aqueous solution of acetic acid (CH,CO,H), what is the percentage of acetic acid that…

A: Concentration of acetic acid = 0.60 mM We need to find percentage of acid dissociated.

Q: A student places 25.0 mL of 0.100 M hydrazoic acid (HN3) in an Erlenmeyer flask and adds indicator.…

A: Introduction: An acid is a substance that donate H+ ions and base that can accept protons. The acid…

Q: Calculate the hydronium and hydroxide ion concentration of pure water at 100 degrees celsius (Kw =…

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Q: For a neutral solution the [H30]=1x 10-/ M and the [OH"] 1 x 10-7 1 x 10-14 0 7 O-7

A: We have the Concentration of H+ ion as 10-7 M We have to calculate the OH- Concentration.

Q: ,What is the final concentration of HCl in a solution prepared by the dilution of 12.0 mL of 12.0 M…

A: For solutions made from a stock solution by adding water Or solvent we can use dilution formula,…

Q: In a 0.43M aqueous solution of crotonic acid (C,H,CO,H), what is the percentage of crotonic acid…

A: Molarity of crotonic acid solution = 0.43 MpKa (Crotonic acid ) = 4.69pKa = -log Ka4.69 = -log KaKa…