Ammonium sulfate is added to an unknown mixture of ions. A precipitate forms. The solution is centrifuged, and the remaining solutions is decanted. Ammonium oxalate is then added to the solution and no precipitate forms. Sodium monohydrogen phosphate and sodium hydroxide are added to the decanted solution, and no precipitate forms. Sodium hydroxide is added to a fresh sample of the unknown. A damp piece of litmus paper over the opening of the test tube remains red. Select the ions present.   Question 5 options:   Ba2+   Ca2+   Mg2+   NH41+

Q: To determine the amount of Cl in an unknown sample, a NaCl sample was titrated with the titling…

A: Number of moles=massmolar mass From the given information, AgNO3 + NaCl → NaNO3 + AgCl Mass of…

Q: A solution contains 1.30×102 M lead acetate and 7.48×103 M calcium nitrate. Solid potassium sulfate…

A: Given:Calculate concentrations of sulfate ion when precipitation first begins. Precipitation…

Q: Find the approximate percentage of chlorine,  bromine, and iodine in the original sample?

A: Weight of the soluble salts containing chloride, bromide and iodide = 1.2 g The precipitate after…

Q: [Review Topics] [References] Use the References to access important values if needed for this…

A: The question is based on the concept of solubility product Principle. it states that a weak…

Q: A titration requires an indicator molecule or substance. O True O False

A: Given statement is : "A titration requires an indicator molecule or substance". Is the given…

Q: Suppose you have a solution that might contain any or allof the following cations: Ni2+, Ag+, Sr2+,…

A: Among the ions, Ag and Sr are the only two that will react with these ions to form precipiate.

Q: Standard Sodium Chloride Weighed mass of NaCl Purity of NaCl Molar concentration of NaCl using…

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Q: . A compound is known to be NazCO3, NazSO4, NaOH, NaCl, NaC2H302 or NANO3. When a barium nitrate…

A: Given: The possibility of the compound is Na2CO3, Na2SO4, NaOH, NaCl, NaC2H3O2 and NaNO3. When…

Q: What is the assay for Potassium iodide? Write down chemical reaction(s), the indicator used,…

A:

Q: A 185.0 mL sample of 1.200 M Pb(NO₃)₂ is mixed with 99.50 mL of 1.500 M NaCl, and the PbCl₂…

A: The balanced chemical equation for the precipitation of lead (II) chloride can be written as:…

Q: n unknown compound is insoluble in water. It is dissolved in HCl with a gas formation with an…

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Q: A solution contains 0.10 M potassium cyanide and 0.10 M sodium chloride. Solid silver nitrate is…

A: Substance that precipitates first in this case can be determined by applying the concept of…

Q: (a) devise a flow chart or schematic diagram to separate and confirm the presence of the given ions…

A: It is a method of identifying and classifying elements into a group from a solution provided through…

Q: What concentration of chloride must be achieved in an unknown solution with an initial concentration…

A:

Q: 12. A 0.5000-g sample that contains KCl and KI gives a precipitate of Aga and AgI that weighs 0.2818…

A:

Q: olution 1 contains 10.00 mL of 002 Miron (III) nitrate solution, 4.00 mL of      0.002 M potassium…

A: The reaction between iron (III) nitrate and potassium thiocyanate is given by the following…

Q: A sample of soluble salt weighs 1.2 g and contains chloride, bromide and iodide. With AgNO3, a…

A: To Calculate the approximate percentage of chlorine, bromine and iodine in the sample

Q: A student performs a titration and records the following data: Initial buret volume:  11.87 mL…

A: The moles of NaOH used in this titration is = 0.004049 (or) 4.049 × 10-3

Q: 200. mL of 0.50 M NaCl and 800. mL of 0.100 M AgNO3 are mixed together. Calculate the mass of the…

A: Double displacement reactions are basically the reactions in which exchange of various ions takes…

Q: Part B: Sulfate. A 1.109 g sample of a material known to contain sulfate is dissolved and the…

A:

Q: What is the balanced net ionic equation for the equilibrium involving the solutbility o Mg (OH)2?…

A: The question is based on the concept of solubility product Principle.   it states that a weak…

Q: The Solubility Product Constant for zinc phosphate is 9.1 x 10-33. Solid sodium phosphate is slowly…

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Q: Reaction Add 1 drop of … Add 1 drop of… Did a precipitate form?   1 Fe(NO3)3       NaOH…

A: When NaOH react with different compound it gives different precipitate.

Q: When excess dilute hydrochloric acid is added to a mixture of calcium oxide and magnesium oxide. A…

A: The name of the two salt produced are Calcium chloride and Magnesium chloride.

Q: A chloride unknown weighing 0.3221 g is dissolved in an acidic solution and is treated with silver…

A: we have to calculate the percentage of Cl- in the sample

Q: 125 mL of 0.125 M NaOH aqueous solution and 10.0 mL Choose... of 0.0500 M AGNO3 aqueous solution…

A:

Q: A solution of HCl is prepared for titration of unknown Na2CO3 samples, by standardization with pure…

A: Mass of Na2CO3 = 0.4453 g Molar mass of Na2CO3 = 105.99 g/mole Mole of Na2CO3 =…

Q: For each of the following, use the solubility guidelines to determine if a precipitate will form. If…

A:

Q: A student carries out the following experiments and records the following observations.  1.  A few…

A: It is clear from the experiment that KOH(aq) when combines with Cu(NO3)2(aq), it gives blue…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.