Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN: 9781938168390
Author: Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher: OpenStax
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Textbook Question
Chapter 19, Problem 42E
Explain how the diphosphate ion, [O3P-O-PO3]4-, can function as a water softener that prevents the precipitation of Fe2+ as an insoluble iron salt.
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Consider the following equation: [Ni(H2O)6]2+ + 6NH3 <----> [Ni(NH3)6]2+ +6H2O
The effects of stress on this equilibrium can be monitored by changes in color. An equilibrium mixture is blue-green (indicating both products and reactants are present).
a.) When the equilibrium mixture is heated, the color changes to bright green. Which direction has the reaction shifted? To the products, the reactants, or no shift? How did you determine this? Which is the exothermic direction of this reaction? Forward, reverse, or cannot tell?
b.) When a few drops of concentrated NH3 are added to the equilibrium mixture, the solution turns deep blue. Which direction has the reaction shifted? To the products, the reactants, or no shift? How did you determine this?
c.) Addition of concentrated HNO3 to the blue-green mixture will remove NH3 by reaction. What should happen to the color of the solution? Will it turn more blue, turn more green, or no change? Explain.
When orange solution containing Cr2O72–ion is treated with an alkali, a yellow solution is formed and when H+ions are added to yellow solution, an orange solution is obtained. Explain why does this happen?
The following oxidation-reduction reactions
take place in basic medium. For each reaction,
(i) Assign oxidation state for each atom in the
equation; (ii) Indicate oxidation half-equation
and reduction half-equation; (iii) Balance the
equation by half-equation method; (iv) Indicate
which reactant is oxidizing agent and which
reducing agent. (v) State and verify whether
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Chapter 19 Solutions
Chemistry by OpenStax (2015-05-04)
Ch. 19 - Write the electron configurations far each of the...Ch. 19 - Write the electron con?gurations for each of the...Ch. 19 - Write the electron configurations for each of the...Ch. 19 - Why are the lanthanoid elements not found in...Ch. 19 - Which of the following elements is most likely to...Ch. 19 - Which of the following is the strongest oxidizing...Ch. 19 - Which of the following elements is most likely to...Ch. 19 - The following reactions all occur in a blast...Ch. 19 - Why is the formation of slag useful during the...Ch. 19 - Would you expect an aqueous manganese (VII) oxide...
Ch. 19 - Iron (II) can be oxidized to iron (III) by...Ch. 19 - How many cubic feet of air at a pressure of 760...Ch. 19 - Find the potentials of the following...Ch. 19 - A 2.5624-g sample of a pure solid alkali metal...Ch. 19 - The standard reduction potential for the reaction...Ch. 19 - Predict the products of each of the following...Ch. 19 - Predict the products of each of the following...Ch. 19 - Describe the electrolytic process for refining...Ch. 19 - Predict the products of the following reactions...Ch. 19 - What is the gas produced when iron(II) sulfide is...Ch. 19 - Predict the products of each of the following...Ch. 19 - Balance the following equations by...Ch. 19 - Dilute sodium cyanide solution is slowly dripped...Ch. 19 - Predict which will be more stable, [CrO4]2- or...Ch. 19 - Give the oxidation state of the metal for each of...Ch. 19 - Indicate the coordination number for the central...Ch. 19 - Give the coordination numbers and write the...Ch. 19 - Give the coordination number for each metal ion in...Ch. 19 - Sketch the structures of the following complexes....Ch. 19 - Draw diagrams for any Cis, trans, and optical...Ch. 19 - Name each of the compounds or ions given in...Ch. 19 - Name each of the compounds or ions given in...Ch. 19 - Specify whether the following complexes have...Ch. 19 - Predict whether the carbonate ligand CO32- will...Ch. 19 - Draw the geometric, linkage, and ionization...Ch. 19 - Determine the number of unpaired electrons...Ch. 19 - Draw the Crystal field diagrams for [Fe(NO2)6]4-...Ch. 19 - Give the oxidation state of the metal, number of d...Ch. 19 - The solid anhydrous solid CoCl2 is blue in color....Ch. 19 - Is it possible for a complex of a metal in the...Ch. 19 - How many unpaired electrons are present in each of...Ch. 19 - Explain how the diphosphate ion, [O3P-O-PO3]4-,...Ch. 19 - For complexes of the same metal ion with no change...Ch. 19 - Trimethylphosphine, P(CH3)3, can act as a ligand...Ch. 19 - Would you expect the complex [Co(en)3]Cl3 to have...Ch. 19 - Would you expect the Mg3[Cr(CN)5]2 to be...Ch. 19 - Would you expect salts of the gold(I) ion, Au+, to...Ch. 19 - [CuCl4]2- is green. [Cu(H2O)6]2+ is blue. Which...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- Explain how the diphosphate ion, [O3P−O−PO3]4−, can function as a water softener that prevents the precipitation of Fe2+ as an insoluble iron salt.arrow_forwardIn the following chemical reaction what is the concentrations of [H3O+] in a solution that is 0.00045 M [Al(H2O)6]3+. Assume that the [Al(H2O)6]3+ dissociates 100% completely and assume 1 Liter of solution. [Al(H2O)6]3+ + 3H2O ↔ [Al(H2O)3(OH)3]2+ + 3H3O+arrow_forward[Co(H2O)6]2+ (aq) + 4 Cl-(aq )⇆ [CoCl4]2-(aq) + 6 H2O 3. Does the value of the equilibrium constant (K) for this reaction increase, decrease, or remain the same as the concentration of chloride increases? Explain your answer incorporating the definition of an equilibrium constant.arrow_forward
- what is the reaction in FeCl3 + pb(no3)2arrow_forwardPredict the products of the following reaction. Co(s) + xsF2(g)---->arrow_forwardAmmonium chloride has a diuretic effect, and is also an effective tool for the correction of alkalosis(alkalization of blood), creating an acidic pH of urine. Easily absorbed from the gastrointestinal tract, the drug turns in the liver into urea, which has diuretic activity, and hydrochloric acid, which reduces the alkalinity of tissues: 2NH4Cl + H2CO3 → CO(NH2)2 + 2HCl + 2H2O a) The maximum daily dose of NH4Cl for adults is 12 g. Calculate the mass of hydrochloric acid that will result from this reaction. b) Calculate pH of the solution if daily dose of NH4Cl will be dissolved in 10L of water (Kb=1.76·10-5).arrow_forward
- Please rank properties of the following molecules in an increasing order:a) Acidity: HI, HF, HCl, H2Ob) Bronsted acidity: [Co(H2O)6]2+, [Co(H2O)6]3+arrow_forwardWhat name of bond formed between NH3 and metal ion in complax (cu(NH3)4)²+arrow_forwardGiven that the Kf for [Ni(H2O)5(NH3)]2+ is 501 and Ka for NH4+ is 2.0 x 10-5, what is the equilibrium constant for the following reaction: Ni2+(aq) + NH4+(aq) D [Ni(H2O)5(NH3)]2+ + H+(aq) In a solution of 0.010 M Ni2+ and 0.010 M NH4+, will this reaction favor products or reactants at pH=1? pH=7? pH=12?arrow_forward
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