What is the significance of adding sodium fluoride in the test solution in the analysis of cobalt ion?

Q: The chemical formula of the white precipitate in test for halogens using silver nitrate test * O…

A: Halogens - These are the group 17 elements of the modern periodic table.

Q: A 0.5962 g sample of iron ore is dissolved in perchloric acid (HClO4 ). All iron present is oxidized…

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

A: If either of the given ions forms a precipitate on reaction with the reagent to the mixture then the…

Q: Lithium metal reacts with nitrogen gas to form lithium nitride. Identify the balanced reaction that…

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Q: a. Ag*, Pb2+ b. Mn2+, Fe+ С. c. Ni2+, Al3+

A: a. Ag+, Pb2+ Here the basic medium --> OH- excess will precipitate Pb(OH)2 and leave Ag+ in…

Q: balance this chemical reaction ___________Fe +__________O2 → __________Fe2O3

A: Given reaction is, ___________Fe +__________O2 → __________Fe2O3

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: scandium(III) zinc (II) hydrogen carbonate cyanide lead (II) nitrate is mixed with a solution of…

A: A balanced chemical equation occurs when the number of the atoms involved in the reactants side is…

Q: In the laboratory you are given the task of separating Ca2+ and Ag* ions in aqueous solution. For…

A: The compound formed by every metal ion with another anion possesses a different solubility depending…

Q: 26. I A precipitate forms when aqueous solutions of chromium(III) nitrate and sodium hydroxide are…

A: Chromium(III) nitrate react with sodium hydroxide to produce chromium(III) hydroxide(precipitate)…

Q: Silver nitrate is added to each of the aqueous solutions: [Cr(NH3)3Br3], [Cr(NH3)6]Br3, and…

A: In coordination compound if have primary valency like chloride, bromide, iodide react with AgNO3to…

Q: Explain the three process of gravimetric analysis

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Q: Write the net ionic equation for the reaction of lead (2) nitrate with sodium chloride.

A: Concept introduction: When the cations and anions switch partners, they result in the formation of…

Q: It is required to analyse the metal from its ore sample. Manganese (Mn) present in the ore sample…

A: The mass of the ore sample is = 2.98 g The mass of the MnSO4 precipitate is = 0.19 g The percentage…

Q: A metallurgical laboratory carried out analysis of a sample in which analysis of Mn was done by…

A: The mass of the ore sample is = 3.18 g The mass of the MnSO4 precipitate is = 0.28 g The percentage…

Q: NaF + Br2 -> NaBr + F2 What type of reaction is this (choices are Synthesis, Decomposition, Single…

A: In balanced chemical reaction number of each atom on reactant side is equal to number of each atom…

Q: During the lecture we discussed this reaction: 2 NO2 (g) – N204 (g) what would you expect to happen…

A: The reaction given is Hence the equilibrium constant for the above reaction is where [N2O4] =…

Q: A chemist performs a gravimetric analysis. The chemist combines 1.00 L of 2.00 M AGNO3 (ag) with…

A: Given, AgNO3 solution Molarity of AgNO3 solution = 2.00 M = 2.00 mol/L Volume of AgNO3 solution =…

Q: What is the balanced equation for solid magnesium reacts with copper(ii) chlorine?

A: The reaction of Copper(II) chloride with Mg is single displacement reaction.

Q: What is the balanced chemical equation for the decomposition of mercury (II) oxide?

A: Given reaction,      Decomposition of mercury (II) oxide

Q: The test tube containing some amount of MnO2 and the mixture of KCIO3-KCl is weighed as 7.200 g.…

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Q: Identify the spectator ions in the following reaction:      Na2SO3   +   HBr   →   SO2 (g)   +   H2O…

A: Those ions  which present reactant and product both side are called spectator ions . these ions…

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

A: Given-  First step- 2Cu2S+3O2->2Cu2O+2SO2 Second step- Cu2O+C->2Cu+CO

Q: When Cu2+ reacts with NaOH, what precipitate formed? Give the correct chemical formula and name for…

A: Given :-  Cu2+ + NaOH →  To be determined :-  name and chemical formula of the precipitate formed

Q: Write the balanced molecular equation, including phases, for the reaction of aqueous sodium…

A: Balanced molecular equation: Balance molecular equation can be define as the reaction in which…

Q: What are the steps in the dissolution of a tablet?

A: Concept - Dissolution is a process in which a substance forms a solution. Dissolution testing…

Q: There are two steps in the extraction of copper metal from chalcocite, a copper ore. In the first…

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Q: Write the net ionic equation for the precipitation of copper(II) sulfide from aqueous solution:…

A: The net ionic equation is a chemical equation for a reaction that includes only those species…

Q: Describe the reaction Cu + 4HNO3 → Cu(NO3)2 + 2 NO2 + 2 H2O

A: In this reaction Cu is oxidised from 0 to +2 and N is reduced from +5 to +4  So this is redox…

Q: In the laboratory you are given the task of separating Ca2+ and Zn2+ ions in aqueous solution. For…

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Q: b) Fe" in 0.725 M Fe,(SO4)3 MFe

A: Molarity of Fe2(SO4)3 is 0.725 M  Fe2(SO4)3 ————> 2Fe3+ + 3SO42- each mole of Fe2(SO4)3 it gives…

Q: A metallurgical laboratory carried out analysis of a sample in which analysis of Mn was done by…

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

A: Inorganic cations can be separated using different reagents. For the separation of Ag+ and Fe2+, the…

Q: niobium (V) permanganate iridium (IV) nitrate diarsenic decachloride potassium cyanide barium…

A: Ionic compounds can make ions.

Q: Write the formula of the solid compound that forms when aqueous solutions of magnesium nitrate and…

A: When aqueous solution of magnesium nitrate and sodium carbonate are mixed.  There is formation of…

Q: After 1,600 grams of an aluminum sulphate sample is dissolved in water, aluminum is precipitated in…

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Q: Gold can be determined in solutions containing high concentrations of diverse ions by ICP. Aliquots…

A: For the purpose of the solution of this question, I am assuming that you are permitted to use excel.…

Q: For the analysis of trace metals it is necessary to prepare solutions of very low concentrations…

A: Molarity of a solution is defined as the moles of solute present in one litre of solution. It is…

Q: Of what use is the acid in the isolation of the sought-for constituent in determination of Sulfur as…

A: Barium is a metal that is alkaline metal and is divalent in nature, Barium Sulfate is actually a…

Q: State whether the following analysis is quantitative or qualitative analysis or both. i)…

A: In qualitative chemical analysis, we identify whether a chemical substance of interest is present in…

Q: what chemical test is used to distinguish the two? a. bromine b. molisch's test c. lucas d.…

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Q: Name and describe 4 types of chemical reactions studied in Analytical Chemistry

A: Chemical reactions

Q: Binary compounds composed of metals with variable oxidation numbers, write their formulas. Iron…

A: Binary compounds are compounds which are composed of only two parts - a metal and a non-metal. The…

Q: . K3PO4 + Fe(NO2)2

A: In balanced chemical reaction number of atoms of each element in product side is equal to number of…

Q: Why did the bulb light when NaCl is mixed with distilled water? Explain in terms of chemical…

A: When electrodes are placed in pure water/distilled water, the bulb does not produce light. This is…

Q: 1. is released during the production of clinker. а. СаСОз b. CO2 с. Са (ОН)2 d. CO

A: During the production of clinker following steps occurs

Q: What numbers belong in the blank spaces to fully balance the following reaction? __Fe (s) + __Cl₂…

A: Since the sum of individual atoms on the left side of the equation matches the sum of the same atoms…