mixture contains Mg(NO₃)₂ and KBr. A 1.85 g sample of this mixture is dissolved in water and an excess of NaOH is added, producing a precipitate of Mg(OH)₂. The precipitate is filtered, dried, and weighed. The mass of the precipitate is 0.475 g. What is the mass percent of KBrin the original mixture?Molar mass of Mg(OH)₂is 58.32g/mol, Molar mass of Mg(NO₃)₂ is 148.3 g/mol

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: What mass of Na3CrO4 is required to precipitate all of the silver ions from 20.0 mL of a 0.700 M…

A: 20.0 mL of a 0.700 M solution of AgNO3 and Na3CrO4.

Q: A solution was prepared by mixing 20.00 mL of 0.100 M HNO3  and 110.00 mL of 0.200 M HNO3 .…

A: First, number of moles present in 20.0mL of 0.100M HNO3 is calculated. Similarly the number of…

Q: a) We have 500.0 mL of an aqueous solution of CaCl2 (CaCl2 is a strong electrolyte, molar mass =…

A: Step 1: Step 2: I have given detailed step by step instructions to solve the problem go through the…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.5 mL sample taken…

A: The balanced chemical equation between H2SO4 and NaOH states that one mole of H2SO4 reacts with two…

Q: 243 ml solution of aqueous iodine is prepared by dissolving iodine crystals in water. a fifty ml…

A: The balanced reaction is as follows: H3AsO3(aq) + I2 (aq)+H2O (l)→2I-(aq)+H3AsO4(aq)+2H+(aq) Thus 1…

Q: A student weighs out a 12.2 g sample of K2S, transfers it to a 500. mL volumetric flask, adds enough…

A: Given; Note: (1L = 1000 mL)

Q: 24 is required to precipitate all of the siiver lons from 10.0 mL of a 0.000 M Solution of AgNO3…

A: Reaction between Na2CrO4 and AgNO3 Na2CrO4+2AgNO3−>Ag2CrO4+2NaNO3 Given Volume of AgNO3=10ml…

Q: A titration is performed to determine the amount of sulfuric acid, H2SO4, in a 6.5 mL sample taken…

A: Answer:Molar concentration of a solute in a solution is always equal to the ratio of number of moles…

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: A solution is prepared by dissolving 45.6 g of Mg(NO3)2 in 515 g of water. The density of the…

A: Definition: Molarity is a concentration term for a solution. The molarity of a given solution is…

Q: If 22.0 g of CH₃OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A: Mass of CH3OH = 22.0 g  Molar Mass = 32.04 g/mol  Volume = 500.0 mL  = 0.5 L

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: 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: Consider the following reaction H2S (g) + FeS(s) + CO2(g) →FeS2(s) + HCO2H(aq) If 2.00 g of each…

A: Given Reaction: H2S (g) + FeS(s) + CO2(g) →FeS2(s) + HCO2H(aq)

Q: A solution is prepared by mixing 25.0 mL of a 0.150 M potassium chloride (KCl) with 75.0 mL of a…

A: In this question we have to tell the molarity of K+ ions in the solution.

Q: When solution A and B are mixed together determine the mass of solid (in grams) produced by the…

A:

Q: Many common titrations involve the reaction of acid and base. If 24.74 mL of 0.503 M H2SO4solution…

A:

Q: A sodium sulfate solution is added to a 25.0 mL sample of a solution containing Ba2+ ions until no…

A: To calculate the molarity of the Ba2+ ions, first of all, we calculate the moles of barium sulfate.

Q: If 40.6 g of CH:OH (MM = 32.04 g/mol) are added to a 500.0 mL volumetric flask, and water is added…

A:

Q: An 8.00 mL sample of a stock solution of sodium acetate is diluted with enough water to form 100.0…

A: In this question, we want to determine the Concentration of original stock solution.  How we can…

Q: A solution of NaCl is prepared by dissolving 1.75 g NaCl in enough water to make 100.00 mL of…

A:

Q: A solution of 250.0 mL of a 0.200 M NaHCO3 solution is to be prepared. The solution is diluted by…

A: In the given problem, the molarity of the serially diluted solution can be calculated by using the…

Q: Consider the following reaction H2S (g) + FeS(s) + CO2(g) →FeS2(s) + HCO2H(aq) If 2.00 g of each…

A: Molar mass of H2S =34g/mol Molar mass of FeS =88 g/mol Molar mass of CO2 =44g/mol  Given mass of…

Q: ) A 1.20 gram sample of ammonium phosphate is dissolved in 100. mL of water. The solution is poured…

A: The balanced equation is 2(NH4)3PO4 (aq) + 3 Mg(NO3)₂(aq) --> Mg3(PO4)₂ (s) + 6NH4NO3(aq) Net…

Q: 200.0 mL of 3.96 M hydrochloric acid is added to 100.0 mL of 4.60 M barium hydroxide. After the…

A: Molar concentration of hydrochloric acid = 3.96 M Volume of hydrochloric acid = 200 ml = 0.2 L Molar…

Q: If 36.0 g of NaOH (MM = 40.00 g/mol) are added to a 500.0 mL volumetric flask, and water is added to…

A: Solution:               The concentration of solution gives the number of moles of solute dissolved…

Q: If 25.2 mL of AgNO3 is needed to precipitate all the Cl ions in a 0.775-mg sample of KCI (forming…

A:

Q: Two solutions were made, the first one was made by dissolving 2.27 g of Co(NO3)2 in 100.0 mL of…

A:

Q: 250 mL of a 1.9 M Mg(OH)2 solution is added to a beaker.  How many moles of Mg(OH)2 were added?  How…

A: Molarity is a way of expressing concentration. It is defined as moles of solute present per liter of…

Q: A student weighs out a 11.4 g sample of AI(CH3COO)3, transfers it to a 250. mL volumetric flask,…

A: The number of moles of solute present in one liter of solution is known as the molarity of the…

Q: 16.792 g of Ba(OH)2 (171.342 g.mol) is weighed out and carefully dissolved to make a 500.00cm…

A: Provided amount of  Ba(OH)2=16.792g Molar mass of Ba(OH)2= 171.342g/mol Initially volume of solution…

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

A: Given  Initial Volume of solution ( V1 ) = 18 mL  Molarity ( M1 ) = 0.0459 M  Final Volume of…

Q: A mixture contains only NaCl and Al2(SO4)3. A 2.67-g sample of the mixture is dissolved in water and…

A: The objective of this question is to find the mass percent of Al2(SO4)3 in the sample. This can be…

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

A: Given: Volume of NaOH neutralized = 48.82 mL = 0.04882 L                           (Since 1 L = 1000…

Q: A solution of MgSO4(120.37 g/mol) is prepared by measuring 4.56 g of MgSO4 and diluting to a final…

A:

Q: A 2.50 g sample of KCl is dissolved in 17.0 mL of water. The resulting solution is then added to…

A: Mass of KCl = 2.50 gramsVolume of KCl solution = 17.0 mLMolarity of CaCl2 solution = 0.150 MVolume…

Q: A 2.85 g sample of NaCl and CaCl₂ was dissolved in water, and an excess of AgNO3 was added to…

A: Given: Mass of sample is 2.85 g. Mass of AgCl is 7.20 g. The balanced chemical equation for the…

Q: You are making 750 mL of a 0.7 M Ca(OH)2 solution.  How many moles of Ca(OH)2 will be added?  How…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".