You begin by mixing 200.0 mL of 0.750 M HCl with 100.0 mL of an unknown concentration of NaOH solution.  When you examine the solution, you discover that the acid has been fully neutralized. In the second step of your experiment, you add an excess of aqueous iron (III) nitrate to the solution left over from the first. You notice that 1.605 grams of precipitate has formed. What is the original NaOH solution's concentration?   If the acid is neutralized before you add the aqueous iron (iii) nitrate, What is the excess reactant? What is the minting reactant?     What is the precipitate that forms when you add the aqueous iron (iii) nitrate? Write the chemical formula______

Q: A mysterious white powder is found at a crime scene. A simple chemical analysis concludes that the…

A: Since it is reaching equivalence point means that all the weak base (morphine ) has reacted with the…

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A: The balanced reaction taking place is given as, => 2 KMnO4 + 8 H2SO4 + 10 FeSO4 -------> K2SO4…

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A: 0.2473 g of unknown metal carbonate in 20 mL is titrated against 36.99 mL of the 0.1081 M of HCl.

Q: Many metal ions are precipitated from solution by the sulfide ion. As an example, consider treating…

A: Given: The reaction is as follows, CuSO4(aq) + Na2S(aq) → CuS(s) + Na2SO4(aq) Molarity of Na2S…

Q: 164.00 mL of 0.200 M Cu(NO3)2(aq) is mixed with 93.000 mL of 0.400 M NaOH(aq). Assuming 100% yield,…

A: The chemical reaction is: Cu(NO3)2 (aq) + 2NaOH (aq) →Cu(OH)2 (s) + 2NaNO3 (aq)

Q: 250.0 mg of copper(II) sulfate pentahydrate (CuSO4•5H2O, 249.69 g/mol) was dissolved in water to…

A: Since mass of CuSO4•5H2O used = 250 mg = 0.25 g              (since 1 g = 1000 mg) Hence moles of…

Q: A 2.00g sample of limestone was dissolved in hydrochloric acid and all the calcium present in the…

A: Ca2+ + C2O42- ----CaC2O4

Q: A chemist places 2.6428 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: The solution is given below -

Q: If 400 mL of water is added to 250 mL of a 2.4 M MgCl2 solution, what is the final concentration of…

A: Introduction: Molarity:  Molarity is often used to express the concentration of the solution. It is…

Q: Solid iron(III) hydroxide is added to 633 mL of 0.270 M HCl. The resulting solution is acidic and…

A:

Q: A chemist places 1.5999 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: In given problem, they asked for concentration of Na2SO4 and it is given as NaCl. So it will be…

Q: Boric acid, H3BO3, is commonly used in eyewash solutions in chemistry laboratories to neutralize…

A: Given : Molarity of NaOH = 0.475M

Q: A student prepares a solution of hydrochloric acid that is approximately 0.1 M and wishes to…

A: 3 (a)  Given :-  molarity of NaOH solution = 0.07575 M  volume of NaOH solution = 38.92 mL  volume…

Q: One way to remove lead from water is to add a source of iodide ion so that the lead will precipitate…

A:

Q: The concentration of Ca in a 200.0 mL sample was determined by precipitating the cation as CaC2O4.…

A: Mass of empty crucible = 26.6002 g Mass of crucible + CaO = 26.7134 g Mass of CaO = 26.7134 -…

Q: What mass of iron(III) hydroxide precipitate can be produced by reacting 75.0 mL of 0.105 M…

A: Number of moles of a substance can be calculated by using Molarity ( M ) and volume of solution ( V…

Q: A chemist needs 225 mL of 2.4 M HCl. What volume of 12 M HCl must be dissolved in water to form this…

A: To calculate the volume of a definite molarity of a solution required to prepare solution of other…

Q: A student pipets 11 mL of a 0.0155 M solution of CaCl2 into a 100.00 mL volumetric flask and dilutes…

A: Given,

Q: Many metal ions are precipitated from solution by the sulfide ion. As an example, consider treating…

A: The reaction taking place is CuSO4 (aq) + Na2S (aq) ------> CuS (s) + Na2SO4 (aq) Given :…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 4.30 mL sample. About…

A:

Q: Following the procedure, a student recorded the initial volume of NaOH in his buret as 1.43 mL. He…

A: Titrimetric analysis involves the determination of the volume of a solution of known concentration.…

Q: You begin by mixing 200.0 mL of 0.750 M HCl with 100.0 mL of an unknown concentration of NaOH…

A: Balanced chemical Equation for the reaction in step 1 is, HCl + NaOH ———> NaCl + H2O   From…

Q: A student was given a 3.708-g sample of a mixture of potassium nitrate and potassium bromide and was…

A: Given ; Mass of sample = 3.708 g Mass of AgBr precipitate formed = 2.957 g And the sample contains…

Q: In the analytical chemistry laboratory, Ramli has to perform a titration of barium chloride (BaCl2)…

A: Given mass of solution = 0.108 M  Given volume of solution= 2.0 L

Q: A student needs to prepare 250 mL of a 0.500 M aqueous solution of sucrose, C, H,0, (aq), which is…

A: Preparation of stock solutions are done in Volumetric flask as they have high degree of precision…

Q: the lead in an aqueous lead(II) nitrate solution can be precipitated out by adding potassium iodide.…

A: Given, The lead in an aqueous lead(II) nitrate solution can be precipitated out by adding potassium…

Q: weighs out 0.122 grams of hypobromous acid (HBrO) into a 241 volumetric flask and dilutes it in…

A:

Q: Zinc dissolves in hydrochloric acid to yield hydrogen gas as follows:Zn(s) + 2HCl(aq) → ZnCl2(aq) +…

A: The values are given as follows:

Q: Following the procedure, a student recorded the initial volume of NaOH in his buret as 1.41 mL. He…

A: Given: Initial volume of NaOH in the burette= 1.41 mL Final volume of NaOH in the burette= 12.91 mL…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.43 mL sample taken…

A:

Q: A dietary iron supplement consist of tablets containing the metal in the form of ferrous ions…

A: Given: Molarity of KMnO4 = 0.200M Volume of KMnO4 = 6.23ml To determine: Percentage of iron in the…

Q: A chemist places 2.2352 g of NaCl in a 100 mL volumetric flask and adds water to the mark and calls…

A: Weight of NaCl is 2.2352 gm Molar mass of NaCl is 58.5 gm/mole

Q: Suppose you took a 3.00 mL sample of HNO3 (aq) of an unknown concentration, and find that you have…

A: Given: Volume of HNO3 = 3.00 mL Volume of NaOH solution = 20.30 mL Molarity of NaOH solution = 0.106…

Q: 3. A 5.0 mL sample of a stock solution of concentrated HNO3, a strong acid, is diluted with…

A:

Q: A student pipets 18 mL of a 0.0459 M solution of CaCl2 into a 100.00 mL volumetric flask and dilutes…

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Q: In the laboratory a student combines 21.9 mL of a 0.211 M iron(II) iodide solution with 30.0 mL of…

A: Given- Concentration of iron (||)iodide solution= 0.211M Volume of iron (||) iodide solution =21.9…

Q: An experiment was carried out as follows: 1.5766 g of an ammonium salt was placed in a beaker and 60…

A: The ratio of moles of solute to the volume of solution in liters is known as molarity.

Q: A student needs to prepare 250 mL of a 0.500 M aqueous solution of sucrose, C,,H,,0, (aq), which is…

A: The given data contains, Volume = 250 ml = 0.250 L Molarity = 0.500 M Molar mass of sucrose =…

Q: The data ( Concentration HCl =0.35 M, Volume HCl=24.35 mL, Volume NaOH=36.44 mL) refers to a…

A: Given Concentration HCl =0.35 M Volume HCl=24.35 mL Volume NaOH=36.44 mL

Q: A student performed a similar experiment starting with a 3.2 g sample of marble chips and 75 mL of…

A: Marble chips are Calcium Carbonate  Given mass of Marble chips = 3.2 g Volume of HCl = 75 mL…

Q: A gravimetrical analysis is done with an unknown sample containing AgNO3. A 1.5020-g solid mixture…

A: Given mass of AgCl = 0.6168 g

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A:

Q: In the laboratory a student combines 34.4 mL of a 0.228 M cobalt(II) chloride solution with 23.9 mL…

A: Calculate the number of moles of present in cobalt(II) chloride solution: 1 mL = 0.001 L One mole…

Q: A 10.4 g sample of an aqueous solution of perchloric acid contains an unknown amount of the acid. If…

A:

Q: In the titration of an impure sample of KHP, it was found that 36.0 mL of 0.100 M NaOH was required…

A: KHP reacts with NaOH as: NaOH+KHP→NaKP+H2O

Q: An experiment was carried out as follows: 1.5766 g of an ammonium salt was placed in a beaker and 60…

A: Given % of NH4+ in the salt = 37.5 % Therefore 1.5766 g salt contain 1.5766 × (37.5/100) = 0.5912 g…

Q: Your teacher asks you to prepare 500 mL of a 2.75 molar solution of NaCl for an upcoming laboratory…

A: Determination of mass of NaCl required for the preparation of solution is as follows; Molarity=Moles…

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Q: According to the label on a bottle of concentrated hydrochloric acid, the contents are 36.0% HCl by…

A: Let the mass of solution is 100 g Given  mass of HCl will be 36.0 g Number of moles of…

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.