Assume you dissolve 0.235 g of the weak acid benzoic acid, C6H5CO₂H, in enough water to make 5.00 x 10² mL of solution and then titrate the solution with 0.168 M NaOH. C6H5CO₂H(aq) + OH(aq) → C₂H₂CO₂ (aq) + H₂O(l) What are the concentrations of the following ions at the equivalence point? 0.0033722 1.39e-8 Na+, H3O+, OH- C6H5CO₂ X M Na+ X MH₂0+ 7.21e-7 X MOH™ 0.0033722 XM C6H5CO₂ What is the pH of the solution? 7.86

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A: The reaction of oxalic acid and NaOH is: H2C2O4 +2NaOH →Na2C2O4 + 2H2O

Q: To measure the amount of calcium carbonate CaCO3 in a seashell, an analytical chemist crushes a…

A: Given , Reaction :2HCl(aq) + CO32-(aq) → H2CO3(aq) + 2Cl-(aq)

Q: A chemistry student in the laboratory titrated 18.00 mL of HCl solution with 58.6 mL of 0.145 M NaOH…

A: For the given chemical reaction :HCl (aq) + NaOH (aq)  NaCl (aq) + H2O (aq)Volume of HCl solution =…

Q: A chemistry student needs to standardize a fresh solution of sod!um hydroxide. She carefully weighs…

A:

Q: In a titration 36.7 mL of HBr solution is put in a flask with a few drops of phenolphthalein and…

A: given data are - volume of acid = V1 = 36.7 mL  volume of base = V2 =51.4 ml concentration of base =…

Q: It takes 38.65 ml of a 0.0895 M hydrochloric acid solution to reach the equivalence point in the…

A: Neutralization reactions comprised of bases and acids. In such kinds of reactions, acid's…

Q: carbonate CaCO3 in a seashell, an analytical chemist crushes a 4.40g sample of the shell to a fine…

A: Firat we need to calculate the moles of HCl required to reach end point. Then using mole ratio we…

Q: It takes 38.65 ml of a 0.0895 M hydrochloric acid solution to reach the equivalence point in the…

A: Number of moles of HCl  = 0.03865 L × 0.0895 mol/L  = 0.003459 mol  2HCl(aq) + Ba(OH)2(aq) -->…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A:

Q: 29. In a titration experiment, a solution of nitric acid is analyzed. It is found that 28.3 mL of…

A: given reaction: HNO3 (aq) + NaOH (aq) ⇒ H2O (l) + NaNO3 (aq) in this aq. sodium hydroxide…

Q: A solution contains 0.0140 M Pb2+(aq) and 0.0140 M Sr2+(aq). If you add SO2−4(aq), what will be the…

A: Ion that has lower value KSP , will precipitate first as its ionic product will overcome the KSP…

Q: You have been provided with a 35.0 mL sample of hydrochloric acid (HCl) of unknown concentration.…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: First, we need to calculate the number of moles of oxalic acid (H2C2O4) used. The molar mass of…

Q: 25 mL of acetic acid was titrated 0.1 M NaOH. The titration required approximately 20.00 mL of NaOH…

A: Given,molarity of NaOH = 0.1 MVolume of NaOH = 20.00 mLVolume of acetic acid = 25 mL

Q: Calculate the concentration of HS in an aqueous solution of 0.111 M hydrosulfuric acid, H2S (aq).…

A: Hydrogen sulphide is weak acid so it does not dissociate completely to furnish hydrogen ion  Thus we…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A:

Q: Sodium hydroxide is a strong electrolyte and hydrates in water according to the following equation:…

A: Ph Based question  first find pOH value then pH

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Acid–base titration : It is a method of determining the concentration of an acid or base by…

Q: A technician would like to standardize an unknown Ca(OH)2 solution. It takes 27.07 mL of a 0.172 M…

A: Number of moles of HCl = 0.02707 L × 0.172 mol/L  = 0.004656 mol  2HCl + Ca(OH)2 ---> CaCl2 +…

Q: You perform the following titration. The concentrations and amounts of your reactants are listed…

A: Intrdouction :  We have to calculate the pH of solution .

Q: Using the following reaction, H2SO4 (aq)  +   2 NaOH (aq)     Na2SO4 (aq) +  2 H2O (l) calculate…

A: The given reaction is, H2SO4 (aq) + 2 NaOH (aq) → Na2SO4 (aq) + 2 H2O (l) Volume of NaOH = 14.92 mL…

Q: Calculate the minimum concentration of NH, needed to dissolve 2.00x 10 3 mol of AgBr in 1.00 L…

A:

Q: A solution of HBr with a volume of 25.00 mL is titrated to the endpoint, with 0.550 M Ba(OH)2. If it…

A: 2HBr(aq) + Ba(OH)2(aq) --> 2H2O(l) + BaCl2(aq)For HBr Solution,Concentration of HBr solution =…

Q: In a different titration experiment, it took 17.59 mL of a 0.198 M solution of NaOH to titrate 20.00…

A: From equation mole of HCl and mole of NaOH is equal

Q: A titration involves adding a reactant of known quantity to a solution of an another reactant while…

A: Answer:Buffer solution is a type of solution that resists the change in its pH on adding small…

Q: A student performs a titration between 10.0 mL of a 0.25 M weak acid HA(aq) (Ka = 2.45 x 10 −5) and…

A: GIVEN: Volume of weak acid, HA =10.0 mL  Concentration of weak acid, HA = 0.25 M Ka = 2.45 x 10 −5…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Given: Mass of oxalic acid = 10 mg Volume of oxalic acid = 250 mL Volume of NaOH solution = 12.2 mL…

Q: In a different titration experiment, it took 27.2 mL of a 0.102 M solution of NaOH to titrate 20.00…

A: Answer =  0.139 M

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: Here we are required to find the Molarity of sodium hydroxide solution required for standardization…

Q: in water as shown in the equation below. A 40.0 mL sample of an aqueous solution of benzoic acid…

A: The question is based on the concept of titration. we are titrating a weak acid benzoic acid with a…

Q: Consider the following neutralisation reaction between the acid AH and the base B(OH)2: 2AH +…

A: Given;

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A:

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: we have to calculate molarity of NaOH solution

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. She carefully weighs…

A:

Q: A technician would like to standardize an unknown Ca(OH)2 solution. It takes 18.26 mL of a 0.191 M…

A:

Q: A 6.404 gram sample of sodium hydroxide (NaOH) is mixed with 22.50 mL of a 0.642 M HCl solution.…

A: Given: mass of NaOH = 6.404 g molar mass of NaOH = 40 /mol moles of NaOH = massmolar mass…

Q: A chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs…

A: The reaction of oxalic acid and NaOH is H2C2O4 +2NaOH →Na2C2O4 + 2H2O

Q: lan would on of HCI to titrate 25.00 mL the unknown Ca(OH)2 solution. Calculate the molarity of the…

A: We will calculate molarity of Ca(OH)2

Q: Consider the reaction: HCl(ag) + NH3 (aq) = NH¸CI(aq) Where 20.00 mL of 0.100 M NH (aq) is added to…

A: Given reaction is :  HCl (aq) + NH3 (aq) <---------------> NH4Cl (aq)  Molarity of NH3 (aq) =…

Q: You have been provided with a 2.08 x 10-2 L  sample of lithium hydroxide (LiOH) of unknown…

A:

Q: How many moles of Ba(OH)2 are present in 225 mL of 0.200 mol L Ba(OH)2?

A: Given :-  concentration of Ba(OH)2 solution = 0.200 mol.L-1  volume of Ba(OH)2 solution = 225 mL…

Q: A student prepares a dilute solution of sodium hydroxide, NaOH (aq), starting with 6 M sodium…

A: A) Given : Volume of diluted NaOH solution required = 21.84 mL = 0.02184 L…

Q: You have a 1.153 g sample of an unknown solid acid, HA, dissolved in enough water to make 20.00 mL…

A: Volume of unknown acid (V1) = 20.00 mL Molarity of KOH (M2) = 0.585 M Volume of KOH (V2) = 14.90 mL…

Q: chemistry student needs to standardize a fresh solution of sodium hydroxide. He carefully weighs out…

A: Given-> Weight of oxalic acid = 54 mg = 0.054 gm  (1 gm = 1000 mg) Volume of oxalic acid solution…

Q: 45.02 mL of a saturated solution of iron (III) hydroxide are titrated with 0.253 M HCl.  If 3.36 mL…

A: In this question determine concentration of iron(III) hydroxide in saturated solution as per the…

Q: Sodium hydrogen carbonate  NaHCO3 , also known as sodium bicarbonate or "baking soda", can be used…

A:

Electrolysis

Electrolysis is defined as the process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state. The cathode reduces cations, while the anode oxidizes anions. An electrolyte, electrodes, and some form of external power source are the main components required for conducting electrolysis. A partition, such as an ion-exchange membrane or a salt bridge, may also be used, but this is optional. These are primarily used to prevent the products from diffusing near the opposing electrode.