Assignment on the recalculation of the chemical analysis of clinopyroxeneOxideWT%Molecular Molecular Cation % NumberweightNumberAtomic %Molecularof Oxygen of Cations of Fe% of FeO,per 6Mg, andoxygensCaMgO andCaOSiO₂48.11ΤΟΣ1.14Al₂O₁ 7.26Fe₂O₂ 3.13FeO4.86MnO0.11MgO14.04CaO20.46Na₂O 0.66ко0.04Total 99.81Structural Formula:Mg#:

Answered: Assignment on the recalculation of the…

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter17: Electrochemistry

Section: Chapter Questions

Problem 6QAP: Write balanced equations for the following reactions in acid solution. (a) P4(s)+Cl(aq)PH3(g)+Cl2(g)...

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Give the solution with proper sig figs. 4.523 g O2 x ( 1 mol O2 / 32.00 g O2) x (– 533.7 kJ/ 3 mol O2) = – 25.14505313 kJ a. – 25.145 kJ b. – 25.14505313 kJ c. – 25 kJ d. – 25.1 kJ e. none of these f. – 25.15 kJ g. – 2 x 10^1 kJ h. – 3 x 10^1 kJ i. – 25.14 kJ
(a) How many grams of H2O2 are contained in a solution that requires for titration 14.05 mL of KMNO4 of which 1.000 mL 0.008378 g Fe (i.e. will oxidize that amount of iron from the divalent to the trivalent state)? (b) How many grams and how many milliliters of oxygen measured dry and under standard conditions are evolved during the titration?
A 4.912-g sample of a petroleum product was burnedin a tube furnace, and the SO2produced was collectedin 3% H2O2.Reaction:SO2(g)+H2O2→H2SO4A 25.00-mL portion of 0.00873 M NaOH was introducedinto the solution of H2SO4, following whichthe excess base was back-titrated with 15.17 mL of0.01102 M HCl. Calculate the sulfur concentrationin the sample in parts per million.
Findthemass%ofH2O2 inasolutionmadefrom36gofH2O2 and84gofH2O: A) 84% B) 36% C) 43% D) 30.% E) 70.%
The commercial production of nitric acid involves thefollowing chemical reactions:4 NH31g2 + 5 O21g2¡4 NO1g2 + 6 H2O1g22 NO1g2 + O21g2¡2 NO21g23 NO21g2 + H2O1l2¡2 HNO31aq2 + NO1g2 (a) Predict what kind of reaction dopamine is most likely toundergo in water: redox, acid-base, precipitation, or metathesis?Explain your reasoning. (b) Patients with Parkinson’sdisease suffer from a shortage of dopamine and may need totake it to reduce symptoms. An IV (intravenous fluid) bag isfilled with a solution that contains 400.0 mg dopamine per250.0 mL of solution. What is the concentration of dopaminein the IV bag in units of molarity? (c) Experiments withrats show that if rats are dosed with 3.0 mg/kg of cocaine(that is, 3.0 mg cocaine per kg of animal mass), the concentrationof dopamine in their brains increases by 0.75 mM after60 seconds. Calculate how many molecules of dopaminewould be produced in a rat (average brain volume 5.00 mm3)after 60 seconds of a 3.0 mg/kg dose of cocaine.
(f) Potassium permanganate (g) Sodium hypochlorite (h) Beryllium bicarbonate (1) Ammonium dichromate (G) Iron (II) chloride
7. Draw out the chemical equations of the carbonic acid / bicarbonateequilibrium system, explain how the system responds to increase acidity.
Write balanced equations for the following reactions in acid solution. (a) P4(s)+Cl(aq)PH3(g)+Cl2(g) (b) MnO4(aq)+NO2(aq)Mn2+(aq)+NO3(aq) (c) HBrO3(aq)+Bi(s)HBrO2(aq)+Bi2O3(s) (d) CrO42(aq)+SO32(aq)Cr3+(aq)+SO42(aq)
Describe the conditions to be maintained during the titration of a permanganate solution with oxalate. Detail the chemical principles involved.
et Hes proce: 51.) A, Commaon demonstration in chemisty courses invohes odd ing a tiny epeck of manganere (IV) 'oxicle to a coceptng hyd rogen peroxide is unstable, and it decomposes quite" spectaculurly under tuse cond Aions to produce Oxy gen gas + steam (water vapor). Manganese (D) oxiçle 18 d cufa lyst for the decomposition of hygdrgen peroxide Ond is not consumed in h reaction. Write te balanccel equation for the decompostion renchon of hydcaen pruxide. tiny speck
explain anharmonicity.
"After standardization, silver nitrate must be stored in amber bottle and at room temperature with proper ventilation." True False

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