A piece of chalk (mainly calcium carbonate) is placed in 250. mL of 0.337 M HCl. All the CaCO3 reacts, releasing carbon dioxide gas and leaving 250. mL of a clear solution. 20.00 mL of the solution is pipetted into another flask. 37.6 mL of 0.0517 M NaOH is required to titrate the HCl remaining in this 20.00-mL portion. What was the original mass of CaCO3 in the piece of chalk?

Q: f 100.0 mL of 50.0 M SrCl₂(aq) is added to 400.0 mL of distilled water, what is the concentration of…

A: Volume of stock solution,  V1 = 100.0 mL Concentration of stock solution,  M1= 50.0 M To determine:…

Q: percent NaOH

A:

Q: The Burke Museum at the UW is analyzing a dinosaur bone sample for the amount of calcium it…

A: The solid

Q: Calculate the mass of precipitate formed when 35.0 mL of a 0.155 M NaBr solution is added to 25.5 mL…

A: Given, For NaBr solution Concentration of NaBr solution = 0.155 M = 0.155 mol/L Volume of NaBr…

Q: A student titrates an unknown amount of potassium hydrogen phthalate with 26.86 mL of 0.1000 M NaOH.…

A: Since the potassium hydrogen phthalate is a monoprotic acid. hence it will have only 1 mole of…

Q: It is desired to neutralize a solution X that contains a mixture of potassium chloride and…

A: The solution contains several steps.Explanation:Step 1:Step 2: Step 3: Step 4:

Q: Calculate the mass of carbon dioxide gas that will form when 1.6900g of a sample of pure sodium…

A: Given : Mass of sodium carbonate i.e Na2CO3 = 1.6900 g Concentration of HCl = 0.301 M And volume of…

Q: What volume of 0.100 M Na3PO4 is required to precipitate all the lead(II) ions from 400.0 mL of…

A: The question is based on the concept of molarity. molarity is a method of expressing concentration…

Q: Hard water often contains dissolved Ca2+ and Mg2+ ions. One way to soften water is to add…

A:

Q: During a titration the following data was collected. A 5 0. 0 mL portion of H2 S O4 was titrated…

A: Given data,  Volume of H2SO4 = 50.0 mL  = (50.0 ÷ 1000) mL = 0.050 L Molarity of KOH = 0.500 M…

Q: 19.71 mL of an aqueous aluminum nitrate, Al(NO3)3 , solution is applied to the top of a column…

A: Molarity of NaOH = 0.2895 M Volume of NaOH = 54.30 mL Determine the moles of NaOH -  Moles of NaOH =…

Q: You are given solutions of HCl and NaOH and must determine their concentrations. You use 27.5 mL of…

A: Given :             27.5 mL of NaOH to titrate 100.0 mL of HCl             18.4 mL of NaOH to…

Q: A mixture of hydrochloric and sulfuric acids is prepared so that it contains 0.235 M HCl and 0.605 M…

A: Given:Molarity of  HCl = 0.235 MMolarity of H2SO4 = 0.605 MTotal volume = 273.1 mLMolarity of NaOH =…

Q: What volume of 0.100 M  Na3PO4 is required to precipitate all the lead(II) ions from 200.0 mL of…

A: The required reaction is        3 Pb2+(aq) + 2 PO43- (aq) ---------> Pb3(PO4)2 (s)

Q: A 25.00 mL sample of phosphoric acid (H3PO4) is titrated to the equivalence using 19.71 mL of 0.2056…

A: Answer: In acid-base reaction, neutralization takes place where hydrogen ions and hydroxide ions…

Q: A 22.58-mL sample of sulfuric acid from an automobile battery requires 34.03 mL of 1.95 M  sodium…

A: The objective of this question is to find the molarity of the sulfuric acid solution. Molarity is a…

Q: A student uses 1.05 g of a tablet containing Carbonic Acid dissolved in 0.05 L distilled water. The…

A: Given: Volume of distilled water = 0.05L , mass of solute = 1.05 g ,volume of NaOH = 3.76 mL  To…

Q: The percentage of NaHCO3 (molar mass = 84.01 g) in a powder used for an upset stomach is found by…

A:

Q: b) 20.00 mL of 0.2254M hydrochloric acid (HCI) is added into a 0.2719 g rock sample that contains…

A:

Q: One of the main acidic components of acid rain is sulfuric acid, H2SO4 . Assuming sulfuric acid is…

A:

Q: A 25.0 mL solution of HNO₃ is neutralized with 45.6 mL of 0.250 M Ba(OH)₂. What is the concentration…

A:

Q: When 3.5 g of CaF2 (an insoluble salt, Ksp = 3.9 X 10-11) is added to water to make 200. mL of…

A: mole  = mass  /  molecular weight molecular weight of CaF2 = 78.07 g/mole concentration = mole  *…

Q: A student wishes to determine the mass percentage of barium in a 2.016g sample. The student…

A: Given : Mass of sample = 2.016g Molarity of H2SO4 = 0.20M Volume of H2SO4 = 20ml

Q: 4. What mass of solid aluminum hydroxide can be produced when 50.0 mL of 0.200 M Al(NO3)3 is added…

A: Limiting reactant :- A Reactant which is present in lesser number of moles than required as per…

Q: A 0.786 g sample of KHP is dissolved in 50 mL of water and titrated with KOH. The initial burette…

A:

Q: What is the percentage of KHP in this sample?

A:

Q: Calculate the concentration of sodium jons in solution after 30.0 mL of 3.35 M NaCI and 70.0 mL of…

A:

Q: A 0.09948 M solution of NaOH was used to titrate a solution of an unknown concentration of HCl. A…

A: Molarity of the HCl solution can be determined using the given expression,

Q: What volume of 0.219 M hydrochloric acid (in mL) is needed to neutralize 3.44 g of magnesium…

A: The number of moles is given as the mass upon the molar mass of the substance. The molarity of a…

Q: An acidic solution is 0.100 M in HCl and 0.210 M in H2SO4. What volume of a 0.160 M solution of KOH…

A: Given,Molarity of HCl = 0.1 M = 0.1 mol/LMolarity of H2SO4 = 0.21 M = 0.21 mol/LVolume of acidic…

Q: A solution of potassium permanganate was titrated by adding 28.75 mL of the solution to a solution…

A: The question is based on the concept of quantitative analysis . we need to calculate concentration…

Q: 42.1 mL of 1.41 M hydroiodic acid is added to 29.3 mL of barium hydroxide, and the resulting…

A: Reactions leading to the creation of neutral salts and water are regarded as neutralization…

Q: 25.0-mL sample of concentrated sulfuric acid, H2SO4, is diluted to 1.00 L and a 25.0-mL sample of…

A: At equivalence point of titration Moles of acid H+ = moles of base.  NaOH is a strong base so…

Q: A 25.0 mL solution of HBr is neutralized with 13.7 mL of 0.230 M Ba(OH)₂.  What is the concentration…

A: Given, V1 = volume of HBr M1 = concentration needed to make solution

Q: the concentration of the Sodium hydroxide solution.

A:

Q: An aqueous solution of hydroiodic acid is standardized by titration with a 0.137 M solution of…

A: The hydrochloric acid reacts with calcium hydroxide to form calcium chloride and water. The equation…

Q: If 150.0 mL of 2.5 mol/L Na2SO4 is mixed with 125 mL of 0.26 mol/L AgNO3, determine the…

A: A question based on mole concept that is to be accomplished.

Q: The concentration of a certain sodium hydroxide solution was determined by using the solution to…

A: From the formula of molarity and reaction between given compounds we can determine the Molarity of…

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: 185 mL sample of 1.20 M Pb(NO₃)₂ is mixed with 61.5 mL of 1.50 M NaCl, and the PbCl₂ precipitate is…

A: Lead nitrate reacts with sodium chloride to form lead chloride and sodium nitrate. Write the…

Q: What volume of 0.100 M NAOH is required to precipitate all of the nickel (II) ions from 150.0 mL of…

A: Reaction for the above query will be :  2NaOH(aq) + Ni(NO3)2 (aq) ------> 2NaNO3(aq) + Ni(OH)2(s)…

Q: Iron reacts with HCl solution to give H2 gas and Fe2+ ions. Suppose that 3.7 g of iron are to be…

A: The question is based on reaction Stoichiometry. we have been given mass of iron. we need to…

Q: A 0.8830 g sample of a mixture of NaCl and KCl is dissolved in water, and the solution is then…

A: Given : Mass of mixture = 0.8830 g And mass of AgCl produced = 1.913 g Molar mass of AgCl = Atomic…

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.