In 1800s Prussian blue was discovered magnificent in laundry services, though it has a cyanide compoxnent but still is commercially available even now these present days. Why? a. cyanide is trapped by the compound b. it is chemically engineered now to be cyanide-free c. having a cyanide component on it is a myth d. There were no reports of late poisoning *Choose only one answer

In 1800s Prussian blue was discovered magnificent in laundry services, though it has a cyanide compoxnent but still is commercially available even now these present days. Why? a. cyanide is trapped by the compound b. it is chemically engineered now to be cyanide-free c. having a cyanide component on it is a myth d. There were no reports of late poisoning *Choose only one answer

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter20: Organic Chemistry

Section: Chapter Questions

Problem 89AP

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7. The iron content of an organometallic compound was analyzed by adding nitric acid to a 0.5351-g sample and heating to volatilize the organic material. After ignition, the residue of| ferric oxide was found to weigh 0.2229 g. (a) What is the %w/w Fe in this compound? The carbon and hydrogen in a second sample of the same compound were determined by combustion analysis. When a 0.5567-g sample was carried through the analysis, 1.2119 g of carbon dioxide and 0.2482 g of water were collected. (b) Determine the %w/w C and %w/w H in this compound? (c) Determine the empirical formula of the compound?
How much CaCO3 (in grams) would you need to produce theoretically 500 g of baghdadite, via solid-state sintering, assuming the CaCO3 is the sole source of Ca2+? (nearest whole number) *note that ths solid-state sintering method mix material in stoichiometric ratios. A. 365 gB. 146 gC. 150 gD. 122 g
14. Dr. Nguyen likes to tease his daughters about boys and crushes. They would like to get back at him by having stick his fingers in a solution and adding electricity to it. Which one of the following compounds should they use in order to show him? A) NO2 B) SO3 C) NH4CI C12H22011 D) E) None of the above will shock Dr. Nguyen 15. Gallium is a soft, silvery metal under normal conditions. It is unique because it will melt in your hand at normal body temperatures. Which of the following statements are true about gallium? A) Gallium has a lower 1st ionization energy than calcium. B) Gallium's most common ion will have an electron configuration that is isoelectronic with argon. C) Gallium's most common ion will be larger than calcium's most common ion. D) Gallium is more metallic than aluminum. E) All of the above statements are true. F) Only two of the above statements are true.
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The iron content of an organometallic compound was determined by treating a 0.4873-g sample with nitric acid and heating to volatilize the organic material. After ignition, the residue of ferric oxide was found to weigh 0.2212 g. (a) What is the %w/w Fe in this compound? The carbon and hydrogen in a second sample of the compound were determined by a combustion analysis. When a 0.5123-g sample was carried through the analysis, 1.2119 g of carbon dioxide and 0.2482 g of water were collected. (b) What are the %w/w C and %w/w H in this compound? (c) What is the compound’s empirical formula?. Multi Line Text.
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A 0.4044 g solid organic sample containing covalently bound bromide and no otherhalogens was placed in a porcelain crucible with about one gram of fresh sodium metal. Ina process known as sodium fusion, the mixture was heated in a furnace to 450°C whichcharred and vaporized the organic portion of the molecule and converted the covalentbromide into sodium bromide. Excess sodium was decomposed by adding small portionsof water which also dissolved the sodiumbromide. The clear solution was quantitatively transferred to a beaker, acidified with dilutenitric acid, and diluted to about 50 mL. A 6 mL quantity of 0.1 M AgNO₃ was added to thesolution andthe mixture heated to about 60°C for an hour to age and digest the precipitate. After filtering,the mass of the silver bromide produced was determined to be 37.8 mg. What is thepercentage by mass bromine in the organic compound? (Ag=107.868, N=14.0067,O=15.9994, Br=79.904)
Give the correct organic product for the following reaction at – 78 °C: 1. Li*[AlH(OtBu),] CI 2. Н,О
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Which one of the following mixtures would NOT produce an insoluble product? Select one: a. Ba(C2H4O2)2(aq) + (NH4)2SO4(aq) → b. CsF(aq) + Pb(NO3)2(aq) → c. Pb(C2H4O2)2(aq) + NH4Cl(aq) → d. Al(NO3)3(aq) + RbOH(aq) → e. Ca(NO3)2(aq) + K2SO4(aq) →
To make this KNOWN solution, 0.1632 g was mixed with water (to the mark) in a 100.mL volumetric flask. The Absorbance of this solution was = 0.901 The Unknown Compound (K2Zy(C2O4)z . nH2O) was used to make another solution: 0.1016 g of the unknown compound was mixed with water (to the mark) in a 100.mL volumetric flask. The Absorbance was = 0.677 1a.) Find the molarity of Z, in the ZSO4 . 3H2O (known) solution.(Z is, again, this fictional metal, with molar mass 87.91 g/mol.)Remember that molarity is moles per liter. 1b.)Find the molarity of Z in the unknown solution using Beer’s Law 1c.)Using your answer, find the moles and then the mass of Z in the unknown solution. 1d.) Find the % Z (by mass) in the unknown compound.