175.0 mL of 0.2015 M nitric acid was added to 1.4213 g of impure calcium carbonate sample. The excessacid was back titrated with 72.5mL of 0.1152 M sodium hydroxide to reach the endpoint. Calculate for the percent calcium carbonate? (MM of CaCO3= 100.0869 g/mol) 2HNO3 + CaCO3 → Ca(NO3)2 + H2O + CO2 HNO3 + NaOH → NaNO3 + H2O

Q: b. CH3CH2OH + NaOH --> CH3CH2O - + NaOH2 +       c. CH3COOH + NaOH --> CH3COONa + H2O       d.…

A: We have to find out correct reaction between acetic acid and sodium hydroxide solution

Q: A 50.00 mL aliquot of saline solution was acidified with dilute nitric acid and  titrated with 22.00…

A: In the given method to determine NaCl or Cl-(aq) content in saline, first, excess Ag+(aq) is reacted…

Q: Molarity of Na2S2O3 (stock solution).    0.100 M Volume of diluted bleach titrated (taken from the…

A: Density of commercial bleach solution = 1.08 g/mL

Q: Excess Ca(OH)2 is shaken with water to produce a saturated solution. The solution is filtered, and a…

A:

Q: A 300.0-mg sample containing H3PO4 and inert material was diluted with water and titrated with…

A: Answer: Since, 2 water molecules are forming as a product, therefore balanced reaction between…

Q: Calculate the alkaline strength of pearl ash ( impure potassium carbonate) in terms of percent K2O…

A: Using the given date, Mass of Na2CO3 = 48.03×0.0053g Mass of KHC2O4 ·H2O = 2.02×0.02192g Mass of O…

Q: A 1.0 g sample containing urea was dissolved in water and diluted in a 100.00 mL volumetric flask.…

A: On reaction with sulphuric acid, urea produces ammonia. One mole of urea produces one mole of urea.…

Q: 3.00g of activated charcoal was added to 50 mL of acetic acid solution (0.4 mol/L) in a conical…

A:

Q: (a) Will Co(OH)2 precipitate from solution if the pH of a0.020 M solution of Co(NO3)2 is adjusted to…

A: The ion product, Q for a compound is expressed as: If Q > Ksp, the solution is supersaturated,…

Q: Molarity of Na2S2O3 (stock solution).    0.100 M Volume of diluted bleach titrated (taken from the…

A: Solution: For a given titration reaction the stoichiometric relation plays important role, as from…

Q: A 50.0 mL saturated solution was prepared. After filtering each solution, a 5.0 mL  aliquot was…

A: Given, volume of saturated solution = 50 mL. volume of aliquot = 5 mL. volume of Erlenmeyer flask =…

Q: Calculate the % w/w Cl– (35.45 g/mol) in the sample. Provide your answer to 2 places after the…

A:

Q: Limestone consists mainly of the mineral calcite, CaCO3. The carbonate content of 0.5413 g of…

A: The ratio of mass of solute to the mass of solution multiply by 100 is known as % mass.

Q: 11. A suspension of milk of magnesia, Mg(OH)2, is analysed by back titration. A 1.0391 g sample is…

A: Solutions                   Calculate the weight percentage of magnesium hydroxide in the sample..

Q: A 10.00 ml sample containing 6.0000 g/L of a mixture of KCI (74.5 g/mol) and NaCl (58.5 g/mol) was…

A: Given: Volume of sample = 10.00 mL And density of sample = 6.0000 g/L.

Q: Mass of NaOCl in commercial bleach titrated. ?

A: Moles help to calculate mass

Q: 100 ml 0.10M AgNo3 is added 100 ml of 0.12 M Nacl (ksp agcl = 1x10^-10) 1. CALCULATE THE NUMBER OF…

A:

Q: A mixture containing only KCl (74.55 g/mol) & NaBr (102.89 g/mol) was analyzed by the Mohr method. A…

A: Chloride ion concentration of an unknown sample can be calculated using Mohr method.  In Mohr…

Q: If 0.3074 g of a mixture of pure KCl and KBr requires 30.98 mL of 0.1007 M AgNO3 solution for its…

A: From the used silver nitrate we can easily determine how many moles  of silver nitrate was used.…

Q: Calculate the CO2 concentration in this air sample in ppm.

A: Answer is 4.768g/mL

Q: Determine the parts per million of CO2 in the sample of air, given that the density of CO2 at the…

A:

Q: From a 50.0 mL drink sample suspected to be spiked with cyanide (CN-), an 10.0-mL aliquot was taken…

A: A question based on concentration terms that is to be accomplished.

Q: .00 mL of a nitric acid solution of unknown concentration is pipetted into a 125-mL Erlenmeyer ask…

A: Molarity is defined as “the mole of the solute per unit volume of the solution”. It is represented…

Q: A 1.067g sample of magnesium oxide of 84.736% were treated with 50mL of 1.017 N Sulfuric Acid, and a…

A: Given: mass of MgO = 1.067 g Volume of H2SO4 = 50 mL  Normality of H2SO4 = 1.017 N Volume of NaOH =…

Q: A 50.0 mL solution of Ca(OH)2 with an unknown concentration was titrated with 0.340 M HNO3. To reach…

A: Calcium hydroxide reacts with nitric acid to form calcium nitrate. In this reaction, calcium…

Q: A 20-tablet sample of soluble saccharin was treated with 20.00 mL of 0.08181 N AgNO3. After removal…

A:

Q: Moles of OCl– in the diluted bleach titrated. ?

A: Iodine and hypochlorite play role in titration Moles of iodine play role in hypochlorite ions

Q: A 10.0 mL aliquot of H2 SO4 solution was diluted to 100.0 mL. Then 25.0 mL aliquot of the diluted H2…

A: Here we are required to find the molar concentration of original sulphuric acid

Q: A 0.574-g sample of a chlorocarbon compound was analyzed by burning it in oxygen and collecting the…

A: Given data: Molarity of AgNO3 = 0.28 M Volume of AgNO3 = 26.21 mL Molarity of KSCN = 0.122 M Volume…

Q: 0.753-g sample of a chlorocarbon compound was analyzed by burning it in oxygen and collecting the…

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the…

Q: 4. In standardizing H2SO4 as a titrant, a 0.4512-g of primary-standard-grade Na2CO3 required 36.44…

A:

Q: A 50.0 mL solution of Ca(OH)₂ with an unknown concentration was titrated with 0.340 M HNO₃. To reach…

A: Given data, Volume of Ca(OH)2 solution = 50.0 mL Molarity of HNO3 = 0.340 M Volume of HNO3 at…

Q: A 3.00-L sample of urban air was bubbled through a solution containing 50.00 mL of 0.0116 M Ba(OH)2,…

A: Moles of Ba(OH)2 reacted to produce BaCO3 = Initial moles of Ba(OH)2 - Moles used in Titration with…

Q: A PO4* in 100 ml water sample is precipitated as A93PO4 by adding 100 ml 0.2 M AGNO3. Then excess…

A: The chemical equations are:                                                         Molarity of…

Q: Effect of Common lons on the Solubility of Ca(OH)2 Answer the concentrations and solubility in 3…

A: Given the molarity of the standardized HCl solution = 0.1980 M

Q: A 0.500 g of sample containing Na2CO3 and inert matter is analysed by adding a slight excess of 50.0…

A: According to the mole concept, in terms of mass, the amount of substance in moles is equal to the…

Q: A 50.0 mL solution of Ca(OH)₂ with an unknown concentration was titrated with 0.340 M HNO₃. To reach…

A: Given : volume of Ca(OH)2 = 50.0 mL = 0.050 L                                  (since 1 L = 1000 mL)…

Q: A 100.0-mL sample of brackish water was made ammoniacal, and the sulfide it contained was titrated…

A: Answer: This question is based on stoichiometric calculation where moles of silver nitrate will be…

Q: A 4.908-g sample of a petroleum product was burned in a tube furnace, and the SO2 produced was…

A:

Q: Silver nitrate can be standardized using primary standard KCl.  A dried sample of analytical grade…

A: When Titration between potassium Chloride and silver nitrate take place, then Following balanced…

Q: A student carried out a non-aqueous titration at chemistry laboratory using 0.1N solution of HCIO4…

A: Given: Normality after standardization of HClO4 =0.06 N 1mL of 0.1 M   HClO4 is equivalent to…

Q: 150.0 mL of 0.2105 M nitric acid was added to 1.3415 g calcium carbonate. The excess acid was back…

A: Given : Volume of Nitric acid=150.0 ml Molarity of nitric acid=0.2105 M Mass of calcium…

Q: A sample of alfalfa meal weighing 2.0 g is  analyzed by Kjeldahl method for the  percentage of…

A: Kjeldahl analysis is used for the quantitative determination of N in protein and other samples.

Q: 9. A suspension of milk of magnesia, Mg(OH)2, is analysed by a back-titration. A 1.0391 g sample is…

A: In an acid-base reaction salt and water are formed.

Q: Sulfur containing compound weighing 4.8670 grams was digested and purified to form H,SO4. A 25.00-mL…

A: Moles = Molarity * Volume (L) Mass = Moles * Molar mass

Q: A 0.4263 g solid sample containing NaCl and KBr only was dissolved in 50 mL of water and titrated to…

A:

Q: A titration of 50.00 mL of 0.1100 M Fe3+ with 0.07750 M Sn2+ is carried out. The analytical reaction…

A: Equivalance point is the point where all moles of one reactant is neutralized by another compound.…

Precipitation Titration

Precipitation analysis is used to analyze drugs, and to measure the salt content in food and beverages. It is an important concept from the examination point of view many practical questions are asked on the topic. This topic is significant in the professional exams for both undergraduate and graduate courses, especially for