When 6.881 g of MgCl2 and NaCl mixture is dissolved in 500 mL of distilled water and 50 mL of AgNO3 is precipitated, 0.5923 g of AgCl precipitates are formed. The Mg in the other 50 mL portion is precipitated as MgNH4PO4. Calculate the percentages of MgCl2 and NaCl in the sample as the 0.1796 g Mg2P2O7 is weighed after the precipitate is heated.

Q: MGNH&PO4-6H2O has a solubility in water of 0.023 g/100mL. Suppose a student obtains 0.7193 g of…

A: Solution:- Given the solubility of MgNH4PO4.6H2O is 0.023 g/100 mL  Mass of precipitate = 0.7193 g…

Q: 1. What is the mass concentration of water vapor (g H20 per m3 of air) in a liquid-water cloud at a…

A: Saturation water vapor pressure, P at 273 K = 611.6 Pa 1 Pa = 1 kg/m.s2 1 J = 1 kg.m2/s2. Molar mass…

Q: y of PbCl2 in water is 0.0150 g/L at 25 oC.  What is the molar concentration of             Cl- ion…

A: Equilibrium is the state of the reversible reactions. So when the rate of the forward direction…

Q: When treating a mixture of metals (copper and zinc) with an excess of a solution of hydrochloric…

A: Given: A mixture of copper and zinc metal is taken. On reaction of mixture with HCl, 2.24 L of gas…

Q: Calculate the mass (in grams) of PbCl2(s) precipitated by mixing 8.59 mL of a 0.179 M Pb(CH3COO)2…

A: Answer is explained below.  Given that the concentration of KCl solution is 0.2 M and its volume is…

Q: If 45.0 mL of 0.250 M CaCl2 is added to 19.0 mL of 1.00 M AgNO3, what is the mass of the AgCl…

A: Balanced chemical equation: 2AgNO3 (aq)  +   CaCl2 (aq)   ------>   2AgCl (s)   +   Ca(NO3)2 (aq)…

Q: To determine the amount of magnetite, Fe3O4 in an impure ore, a 1.5419 g sample is dissolved in…

A: The balance chemical equation can be given as below 2Fe3O4 → 3Fe2O3 The formula weight of Fe3O4 =…

Q: Consider these compounds: A. Al(OH)3 B. Ag3PO4 C. Zn3(PO4)2 D. Ca3(PO4)2 Complete the following…

A: Given compounds are: A. Al(OH)3 B. Ag3PO4 C. Zn3(PO4)2 D. Ca3(PO4)2 By comparing these…

Q: -) If 31 mL of the previous KOH solution (2A) was used to make 100 ml of a diluted KOH solution what…

A: According to the law of chemical equivalence, in a chemical reaction, the number of equivalents that…

Q: A sample is to be analyzed for its chloride content by precipitating and weighing silver chloride.…

A: Mass percent of a sample is given by the ratio of mass of individual substance to the mass of whole…

Q: What mass of silver carbonate (MW = 275.75 g/mol) precipitates when 18.0 mL of 3.2M silver acetate…

A: Molarity = number of moles of solutevolume of the solution (in ml)×1000Number of moles of solute =…

Q: A solution was prepared by dissolving 367 mg of K3Fe(CN)6 (329.2 g/mol) in sufficient water to give…

A:

Q: A 6.221-g sample containing magnesium chloride and sodium chloride was dissolved in sufficient water…

A:

Q: A 1.461 g sample containing K2SO4, NH4Cl, and inert materials was dissolved in sufficient water to…

A: Mass of sample=1.461gMass of (C6H5)4BK+(C6H5)4BNH4=0.299g{Volume of aliquot=25mL}Mass of…

Q: A 4.00 g mass of NaOH is dissolved in 5.00 mL of water. A 4.00-mL aliquot of this solution is then…

A: Molar concentration of solution (molarity) is the no of moles of solute per liter of solution.…

Q: 10 mL of 0.6M NiSO4 is mixed with 20 mL of 0.3 M CuSO4 . calculate the molarity of Ni2+, Cu2+ and…

A: [Ni2+ ] = 0.2M [Cu2+]= 0.2 M [ SO42-] = 0.4 M

Q: An aqueous solution is prepared by mixing 240.0 mL of 1.700 M NiCl2 with 160.0 mL of 2.200 M NaCl…

A:

Q: 25 mL of a bleach (NaOCl) sample is diluted to 500 mL. An excessive amount of KI is added to the 20…

A: Working formula Volume×Molarity = no of mmol The weight percent by Volume  = [(Mass of…

Q: What volume (mL) of 0.0.214 M (NH4)2HPO4 is necessary to precipitate the calcium as Ca3(PO4)2 from…

A:

Q: what minimum mass of cobalt (ii) nitrate must be added

A: Given: Volume of cobalt (II) nitrate is 60.0 mL or 0.060 L Molarity of phosphate solution is 0.0890…

Q: Consider the reaction between ammonium dichromate and iron (III) acetate which occurs by the…

A: Molarity is the unit of concentration of a solution, and its unit is mol/L. It is defined by the…

Q: Calculate the molarity of 25.0 grams of KBr dissolved in 750.0 mL. (Molar mass of solute = 119…

A: The given data contains, mass of KBr = 25 g. Volume = 750 ml = 0.750 L.

Q: The density of concentrated sulfuric acid containing 94% by mass of H2SO, is 1.836 g/mL. Calculate…

A: Given:  Density of H2SO4 solution = 1.836 g/ml  Concentration of H2SO4 solution = 94% by mass…

Q: The Inner Harbor is monitored for heavy metal contaminants. One of these is Pb<* because of its…

A: In order to calculate the concentration of Pb2+ in ppm, we need to know first the mass of Pb2+ ions…

Q: 0.5366 g of an KHP sample of unknown purity was massed. The sample was dissolved in approximately…

A: The reaction between NaOH and KHP can be shown as,

Q: What mass of precipitate is produced when 130.0 mL of 0.150 M Cu(NO3)2 is mixed with 150.0 mL of…

A: Precipitation reaction is a double displacement reaction in which two soluble salts reacts with each…

Q: weight of Mn

A:

Q: Calcium oxalate is a sparingly soluble ionic compound composed of calcium ions (Ca2+) and oxalate…

A:

Q: What mass of Na2CrO4  is required to precipitate all of the silver ions from 20.0 mL of a 0.700 M…

A: Given: Volume of AgNO3 = 20.0 mL = 0.02 L Concentration of AgNO3 = 0.700 M   Chemical reaction…

Q: Calcium hydroxide is sometimes used in water treatment plants to clarify water for residential use.…

A: We have Calcium hydroxide as 0.025 M, Aluminium sulphate as 0.125 M of 25 ml. We have to calculate…

Q: Which of the following will be a precipitate in aqueous solution?     a. MgBr2   b. NaBr   c.…

A: (c) AgCl silver chloride forms a white precipitate in aqueous medium. Because the solublity product…

Q: What is the cobalt(II) ion concentration in a solution prepared by mixing 351 mL of 0.372 M…

A: The balanced equation for the reaction is   Co+2 (aq) + 2 OH– (aq) -----------&gt; Co(OH)2 (s)…

Q: Based on the schematic diagram below, which compound is represented by AB? AB compound NH,NO3 ANO3…

A: Given that, a compound AB. We have to determine the compound AB.

Q: Give all answers online to 3 significant figures.   115.0 mL of 0.175 M KOH is mixed with 175.0 mL…

A: GivenMolarity of KOH = 0.175 MVolume of KOH = 115.0 mL = 0.115 LMoles of KOH = Molarity of KOH *…

Q: In the laboratory you are given the task of separating Ag* and Fe2+ ions in aqueous solution. For…

A: Answer-1 No, by the use of K2CO3 it is not possible to separate silver ion and ferrous ion because…

Q: The presence of soluble chromium compounds in wastewater is of great environmental concern. As part…

A: We will calculate concentration of Cr+3

Q: Consider these compounds: A. Ba3(PO4)2 B. Ca3(PO4)2 C. PbCrO4 D. CaCrO4 Complete the following…

A: Barium sulfite = BaSO3 Barium sulfite dissociates as: BaSO3(s) &lt;.....&gt; Ba2+(aq) + SO32-(aq)…

Q: weight of Mn ore

A:

Q: A sample barium halide (Bax2 2H20) weighing 0.3567 g was precipitated as BasO4. Determine the…

A: Mass of BaSO4 = 0.3732 g  Mass of reactant BaX2 .2H2O = 0.3567 g We need to determine X.

Q: Write the balanced NET ionic equation for the reaction when aqueous NiCl₂ and aqueous Na₂S are mixed…

A: A chemical reaction in which the number of atoms present on the left hand side of the equation is…

Q: 50.0-mL portion of a solution containing 0.222 g of BaCl2 x 2H2O is mixed with 50.0 mL of a solution…

A:

Q: what mass of Na2CrO4 is required to precipitate all of the silver ions from 55.0 mL of a 0.300 M…

A: Given:Molarity of AgNO3 = 0.300 M.Volume of AgNO3 = 55.0 mL = 0.055L.The balanced chemical reaction…

Q: Calculate the mass of MgCO3 precipitated by mixing 10.00 mL of a 0.200 M Na2CO3 solution with 5.00…

A: The following reaction is occurring: Determine the moles of Na2CO3 present in the reaction as shown…

Q: Calcium oxalate is very insoluble in water.  What mass of sodium oxalate is required to precipitate…

A:

Q: What is the molarity of K+ in a solution that contains 89.72 ppm of K3Fe(CN)6 (329.3 g/mol

A: we know that  1ppm = 1 mg/L formula for Molarity =  M = {gram of molecule/ molar mass of…

Q: A precisely measured volume of 250.0 mL of a saturated NaCl(aq) solution at room temperature is…

A:

Q: In one experiment, 0.2480 g sample of CaCO3 was dissolved in an acidic solution. The calcium was…

A: Given data,Mass of sample=0.2480gMass of CaC2O4.H2O=0.3084g