In the laboratory you are given the task of separating Pb²* and Fe2* ions in aqueous solution.

Q: A sample of steel weighing 0.1798 g was dissolved and the manganese present was converted to MnO4–…

A:

Q: A 1.00 g sample of a magnesium-aluminum alloy yields 0.107 g H2 when treated with an excess of…

A: Given, Mass of Mg-Al alloy = 1.00 g Mass of H2 produced = 0.107 g   Moles of H2 produced can be…

Q: Cu2+ mixed with OH- ions in water forms the blue precipitate Cu(OH)2(s). Cu2+ mixed with a small…

A: The objective of the question is to understand the chemical reactions that lead to the formation of…

Q: Twenty tablets of an iron food supplement whose total mass was 22.131 g were crushed and perfectly…

A: Answer: This question is based on the relation between mass, molar mass and number of moles and by…

Q: 1. A sample containing magnetite, Fe;O4, was analyzed by dissolving a 1.5419-g sample in…

A: Amount of Ore obtained Fe=0.8525g Reaction involved  Fe3O4 + 8HCl ----------   Fe+2+2Fe+3 4Fe3O4  +…

Q: A solution contains one or more of the following ions: Ag+, Ca²+, and Co²+. Lithium bromide is added…

A: Given the solution doesn't form any precipitate with the bromide ion(Br-), but forms a precipitate…

Q: If a nail made of elemental iron [Fe(s)] is placed in an aqueous solution of a soluble palladium(II)…

A:

Q: Which of the following ions form distinctive colors (i.e. not white or colorless) upon addition of…

A: Aluminum  upon addition of aqueous NH3 gives white precipitate of Al(OH)3. Calcium usually does not…

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: The following chemical reaction takes place in aqueous solution: 2 AgNO3(aq)+K,CO;(aq)…

A: Recall the reaction--- 2AgNO3(aq) +K2CO3(aq) ------> Ag2CO3(s) + 2KNO3(aq)  Write net ionic…

Q: if I were to separate Bi3+ and Co2+, can I do that by adding H2S? So that Bi3+ would precipitate?…

A: Bi3+ is the second group basic radical whereas Co2+ belong to the fourth group.  For the sepration…

Q: A solution of Na2S is mixed with a solution of CuCl2. A black precipitate is formed. Write the net…

A: Solubility product is a product of the concentration of ions with the power when the solution is…

Q: 2. (Balance the equation) FeCl+NaOH>Fe(OH);+Nacl

A: A balanced chemical reaction equation has equal number of atoms and charges on both reactant and…

Q: If an unknown solution forms a white precipitate when silver nitrate is added, what two possible…

A: Salt of both carbonate and chloride ion gives white precipitate on treating with silver nitrate…

Q: One way to determine the concentration of hypochlorite ions (ClO–) in solution is by first reacting…

A: Titration based on redox reaction between the analyte and titrant is known as redox titration.

Q: Write the balanced NET ionic equation for the reaction when (NH₄)₂CO₃ and CaCl₂ are mixed in aqueous…

A: Since, For write balanced net ionic equation, first balanced the equation then after change into…

Q: Write the balanced NET ionic equation for the reaction when MnCl₄ and (NH₄)₂CO₃ are mixed in aqueous…

A: The objective of the question is to write the balanced net ionic equation for the reaction when…

Q: An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCI. The resulting solution…

A: Molar mass of Fe3O4 - 231.533 g/mol Given, 2.9912 g of ore sample. Fe2O3 obtained - 0.8394 g.

Q: on, and then titrated with pre. n't need to know the formula

A: Calculation of mass percentage of iron. Mass of iron = 55.845g/mol.

Q: the reaction of sodium phosphate (Na3PO4) solution with lead (II) chlorate [Pb(ClO3)2] solution…

A: Precipitation reactions occur when cations and anions in aqueous solution combine to form an…

Q: The following chemical reaction takes place in aqueous solution: 2FeCl3 (aq) + 3K2S (aq) → Fe2S3…

A: Given molecular equation:                 2FeCl3(aq) + 3K2S(aq) → Fe2S3(s) + 6KCl(aq)

Q: sample of steel weighing 0.1708 g was dissolved and the manganese present was converted to MnO4–…

A: Mass of steel sample = 0.1708 g  Mn .....> MnO4- (Converted from steel)  Total volume of MnO4-…

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…

Q: When solid Fe metal is put into an aqueous solution of NiSO4, solid Ni metal and a solution of FeSO4…

A: The complete molecular reaction taking place is  Fe (s) + NiSO4 (aq) ------> FeSO4 (aq) + Ni (s)…

Q: Some chemical reactants are listed in the table below. Complete the table by filling in the…

A: The more electronegative element in a substance is a negative oxidation state. The more…

Q: The following chemical reaction takes place in aqueous solution: FeSO4(aq) + (NH4)₂S(aq) →…

A:

Q: A 6.881-g sample containing magnesium chloride and sodium chloride was dissolved in sufficient water…

A: Given: mass of MgCl2·6H2O and NaCl sample = 6.881 g. Volume of solution made = 500 mL = 0.500 L…

Q: A sample of 1.55g of iron ore is dissolved in a acid solution in which the iron is converted into…

A: Given : The titration reaction involves oxidation of Fe2+ to Fe3+ using MnO4- ions which is reduced…

Q: Hard water contains magnesium and calcium ions 1Mg2+, Ca2+2, which can precipitate out in hot water…

A: When calcium and magnesium ions are present in dissolved forms in water, the water is known as a…

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

A: Step 1)  1) When KOH is added to Cu(NO3)2 . a white solid substance formed which contains Cu2+ . the…

Q: Write the balanced NET ionic equation for the reaction when AgC₂H3O2 and Ni(CIO4)2 are mixed in…

A: When siver acetate , AgC2H3O2 and nickel perchlorate , Ni(ClO4)2 are mixed in aqueous…

Q: An iron ore was analyzed by dissolving a 2.9912-g sample in concentrated HCI. The resulting solution…

A: Given: Mass of ore sample used = 2.9912 g. And mass of Fe2O3 obtained = 0.8394 g.

Q: Describe in words how you do the following preparation. Then give molecular equation for the…

A: The preparation of MgCl2(s) can be done by reaction of solid Mg(OH)2 with gaseous HCl (hydrochloric…

Q: A sample of steel weighing 0.1708 g was dissolved and the manganese present was converted to MnO4–…

A:

Q: The following chemical reaction takes place in aqueous solution: 2 FeCl₂(aq)+3 K₂S(aq) →Fe₂S3(s)+6…

A: The chemical reaction is given and we have to find out the net ionic equation for the following…

Q: The following chemical reaction takes place in aqueous solution: FeCl3 (aq) + 3KOH (aq) → FeOH3…

A: An aqueous solution of potassium hydroxide reacts with an aqueous solution of iron(III) chloride to…

Q: 1. A sample containing magnetite, Fe;O4, was analyzed by dissolving a 1.5419-g sample in…

A: A numerical problem based on isolation of metals, which is to be accomplished.

Acid Base Titration

An acid-base titration is the method of quantitative analysis for determining the concentration of an acid and base by exactly neutralizing it with a standard solution of base or acid having known concentration.