3. What is the percentage of sulfur in a sample of 2 gm of coal that gave a precipitate of 0.084 g of barium sulfate? Note that the atomic weight of sulfur is 32 gm / mole and the molecular weight of the Baso precipitate is 233.4 g / mole.

Q: Based on the associated solubility chart, at what temperature would you need to heat a solution of…

A: 1- You can see the curve of NaNO3 between solubility of salt vs temperature. It is straight line…

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: A newly discovered element called superiorium has the symbol Sp. What is the formula for superiorium…

A: 1. We can determine the formula from the oxidation state of the central element Sp and the ligand…

Q: A nitrate solution containing an unknown cation is added to each of the following three test tubes…

A: The chemical test is used to determine the presence of different types of ions in a mixture. Each…

Q: A 25.0 mL solution of 1.00 M CaCl2 is diluted to 250.0 mL. Then, 30.0- mL aliquot of the diluted…

A:

Q: Silver dichromate, Ag2Cr2O7, is insoluble.  It forms a brick red precipitate.  Calculate the mass of…

A:

Q: Which of the following is false regarding the reaction of 130.8 g of Zn with a sufficient amount of…

A: Given: Mass of Zn reacting = 130.8 g.

Q: Addition of an excess silver nitrate to a 0.5012 g sample yielded a mixture of AgCl and Agl that…

A: Excess silver nitrate was added to a mixture containing NH4I and NH4Cl.…

Q: When aqueous solutions of AgNO3 and NaCl are mixed together, the precipitate that will form is…

A: The answer to the following question is-

Q: 03 Solubility curves can be used to determine if a solution is saturated, unsaturated, or…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: The solubility of magnesium fluoride, MgF2, in water is 1.5 × 10 * g/L. What is the solubility (in…

A: Solubility Product : For a sparignly soluble salt it is the product of solubility(concentration) of…

Q: Consider a slightly soluble salt with a general form of MX(s) --> M*(aq) + X (aq). If its molar mass…

A: Given: Ksp of salt = 5.4 X 10-5  Molar mass of salt = 241 g/mol. And the solubility reaction is,…

Q: One liter of Jell-O contains 78g of powder. What is the % concentration of Jell-O? a. 78% (v/v) b.…

A: The concentration of Jell-O is  7.8% (w/v)  Option "d" is correct.

Q: A lab technician adds 0.15 mol of KOH to 1.00 L of 0.010 M Ca(NO3)2. Ksp=6.5×106 for Ca(OH)2. Which…

A: If the reaction quotient (Q) is less than the solubility product (Ksp), the solution is unsaturated…

Q: Suppose you have a solution that might contain any or all of the following cations: Cu2+, Ag , Ba ,…

A: When HBr is added to the solution, Silver reacts with it and forms a precipitate of AgBr Ag+ (aq) +…

Q: A generic salt, AB,, has a molar mass of 195 g/mol and a solubility of 1.00 g/L at 25 °C. AB2(s) =…

A:

Q: How many grams of nickel (II) phosphate (366.02 g/mol) will precipitate if excess sodium phosphate…

A: The balanced equation for the reaction is given below.

Q: Two flasks filled with NH3(g) and HBr(g) and both balloons were sealed with taps which were…

A:

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: A 1.000g sample of a mixture which contains only NaCl and KCl gave a precipitate of AgCl which…

A: When a mixture two soluble salts are mixed with a precipitating agent, the initial salts get…

Q: Calculate the weight of pure sodium carbonate that is necessary to prepare 2.806  L of 0.223  N…

A: We need to find molarity of the solution . We assume molar mass of sodium-carbonate in 106 g/mol,…

Q: Calculate the maximum solubility of silver carbonate, Ag2CO3 in g/L when in the presence of 0.063 M…

A: Concentration of Ag+ will increase by AgNO3 because it is an ionic compound with 100 % solubility.

Q: ОН CH;MgBr Et,0 НО НО А

A:

Q: A solution contains 0.0040 M Na3PO4. Calculate the minimum concentration (in M) of Ag* needed to…

A: The concentration of Na3PO4 = 0.0040 M Solubility product concentration of Ag3PO4 = 1.8×10−18

Q: Use the balanced reaction equation and the quantities included to calculate the theoretical yield of…

A:

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: Find the concentration of Pb2+(aq) in ppm by mass of a 1.07 L sample of contaminated water that was…

A: Pb2+(aq) + 2NaI (s)→PbI2 + 2Na+ Given: Density of solution = 1 kg/L Volume of solution = 1.07 L…

Q: 5. K2SO4 + BaCL2 --> KCL + BaSO4 -----

A: K2SO4+ BaCl2 -------> KCl + BaSO4

Q: Find the precipitate reaction to determine the % purity of the CaBr2 in a very old and crusty bottle…

A: Reaction taking place:  3CaBr2 + 2Na3PO4 → 6NaBr + Ca3(PO4)2 In general 3 moles of CaBr2 react with…

Q: If a 1.2 x 103 mol of Pblz dissolves in 1.0 L of water at 25 degrees Celsius to reach saturation…

A: Given;

Q: A metal, Manganese (Mn) was discovered from a mining site. Mn present in the ore sample was analysed…

A: Working formula Percentage of Mn = [(mass of Mn*100)/(mass of ore)] Pecentage of Mn in the sample =…

Q: The solubility product expression for silver(1) sulfide, using x to represent the molar…

A: Solubility product is a constant value at a given temperature. It is represented by Ksp and it is…

Q: Which compound is soluble in water? O AgBr O BaSO4 O MgClz O PBCO3 O CaCO3

A: adding water in barium sulphate its hydration energy decreases more rapidly in comparison to its…

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: would be the solubility product constant (Ksp) equation for a theoretical compound X2Y3? Provide…

A: X2​Y3​⟶2X3+ + 3Y2- Ksp ​= [X3+]^2 [Y2−]^3 so none of the above option is correct

Q: In the lime soda process once used in large scale municipalwater softening, calcium hydroxide…

A: The balanced chemical equations are,

Q: The solubility of magnesium fluoride, M&F2, in water is 1.5 x 10- g/L. What is the solubility (in…

A:

Q: A solution containing 310 g of NaNO, in 300.0g of H,O at 50C is cooled to 20°C. Use the solubility…

A: Fourth option. 46

Q: A 1.50 g sample of KCl is dissolved in 36.0 mL of water. The resulting solution is then added to…

A:

Q: If 250. mL of 1.00*10-4 M calcium chloride solution is added to 150. mL of 0.00400 M sodium…

A: For the reaction yield 100% it is assumed that the mole of product is also same as the mole of the…

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

A:

Q: 11. A solution is prepared by dissolving 25.0 g of ammonium sulfate in 100 mL of solution. Then,…

A:

Q: Initial Cu2+ Concentrations of 0.16 M, 0.080 M, 0.040 M, and 0.016 M. 1.00 mL of each solution is…

A: Beaker 1: Initial concentration of Cu+2 = 0.16M  Initial volume of Cu+2 = 1 ml After addition total…

Q: A generic salt, AB, has a molar mass of 215 g/mol and a solubility of 1.30 g/L at 25 °C. AB(s) =…

A:

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

A:

Q: Scientists determine the quantity of atmospheric sulfur dioxide (SO, ), a large contributor to acid…

A:

Q: To determine the mass of calcium carbonate present in a 0.125 g sample of chalk, the chalk sample…

A: Acid-base titrations can be used to find the concentration of unknown acid/base by titrating it…

Q: 0.6113 g sample of Dow metal, containing aluminum, magnesium, and other metals, was dissolved and…

A: Mass of sample = 0.6113 g Mass of mixture of Al(C9H6NO)3 and Mg(C9H6NO)2 = 7.8154 g Mass of mixture…

Q: Refer to the solubility graph, how much LiCl can be added in 150g H2O until it reaches its…

A: Given: Mass of water is 150 g. Temperature is 70o C. Introduction: A substance's ability to dissolve…

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.