Chemistry concepts and calculations

What percentage reduction in carbon emissions do the following natural gas-fired

What percentage reduction in carbon emissions do the following natural gas-fired CHP systems provide compared to the specified separately generated electricity and heat systems? F…

What periodic trends are observed for the relative solubilities of the compounds

What periodic trends are observed for the relative solubilities of the compounds formed from the Group 2 metal cations? Choose one anion and compare the solubilities of the compou…

What ph is needed to produce this value of q if the concentrations and pressures

What ph is needed to produce this value of q if the concentrations and pressures are: Sulfuric acid is a very strong acid that can act as an oxidizing agent at high concentrations…

What phases in what proportions approximately would be present in a small sectio

What phases in what proportions approximately would be present in a small section of 1080 steel at the end of the following sequence: 1) soak at 750°C for 2 h; 2) quench to 600° C…

What possible carcinogen must we avoid breathing or touching in this experiment

What possible carcinogen must we avoid breathing or touching in this experiment by working in the hood, removing our gloves if we spill any on them, and not walking around with op…

What pressure (matm) will 0.44 moles of Br_2 exert in 9.1021 container at 25 deg

What pressure (matm) will 0.44 moles of Br_2 exert in 9.1021 container at 25 degree C? Which of the following (w/specific heat capacity) would show the largest temp change upto ga…

What pressure is exerted by 763.5 g of CH4 in a 0.730 L steel container at 188.0

What pressure is exerted by 763.5 g of CH4 in a 0.730 L steel container at 188.0 K? Calculate the density, in grams per liter, of a gas at STP if 2.46 L of the gas at 41.9 °C and …

What pressure is necessary to change the boiling point of waterfrom its 1.000 at

What pressure is necessary to change the boiling point of waterfrom its 1.000 atm value of 100oC to 97oC?The heat of vaporization of water is 40.7 kJ/mol. The density ofliquid wat…

What pressure is required to achieve a CO_2 concentration of 7.20 Solution Henry

What pressure is required to achieve a CO_2 concentration of 7.20

What pressure is required to compress an ideal gas from 10.0 ft^3 and 1.00 atm t

What pressure is required to compress an ideal gas from 10.0 ft^3 and 1.00 atm to 2.00 ft^3 under isothermal conditions? A rubber balloon was filled with helium at 25 degree C and…

What problem will arise if the level of the solvent in the developing chamber is

What problem will arise if the level of the solvent in the developing chamber is higher than the spot that initially applied to the TLC plate? Draw the chemical structure of the f…

What problems exist within the following code? C# Explain each problem, and indi

What problems exist within the following code? C# Explain each problem, and indicate whether it is a syntax error or a logic error. C# Programing Language long N; string X; double…

What problems might you encounter using ICP-AES method? How confident are you in

What problems might you encounter using ICP-AES method? How confident are you in the precision of this technique? What improvements—perhaps using analytical instrumentation—could …

What problems might you encounter using ICP-AES method? How confident are you in

What problems might you encounter using ICP-AES method? How confident are you in the precision of this technique? What improvements—perhaps using analytical instrumentation—could …

What process is used to produce a variety of useful products from syn gas? Anaer

What process is used to produce a variety of useful products from syn gas? Anaerobic digestion Gasification Fischer-Tropch Distillation Which a the following reactions is transest…

What process may be used to convert an unsaturated fatty acid into a saturated f

What process may be used to convert an unsaturated fatty acid into a saturated fatty acid? a. Addition b. Combustion c. Esterification d. Hydrolysis e. Hydrogenation What process …

What process occurs in an oxidation-reduction (redox) reaction? What happens to

What process occurs in an oxidation-reduction (redox) reaction? What happens to the species that is oxidized? What happens to the species that is reduced? redox process is reducti…

What product do you NOT expect from this reaction H,C=CH-CH=CH2 Br. H:C = CH-CH-

What product do you NOT expect from this reaction H,C=CH-CH=CH2 Br. H:C = CH-CH-CH- NH-C-CH=CH-CH: T Br Br Br Br -CHD All of these are formed Br Br A) A B)BCC D) D why is 1,3-cycl…

What product do you NOT expect from this reaction H,C=CH-CH=CH2 Br. H:C = CH-CH-

What product do you NOT expect from this reaction H,C=CH-CH=CH2 Br. H:C = CH-CH-CH- NH-C-CH=CH-CH: T Br Br Br Br -CHD All of these are formed Br Br A) A B)BCC D) D why is 1,3-cycl…

What product is formed from this reaction sequence? What us the order of reactiv

What product is formed from this reaction sequence? What us the order of reactivity for these esters towards aqueous sodium hydroxide, NaOH? Place them in order from most reactive…

What product is obtained when 3-hexyne reacts with lithium in liquid ammonia? tr

What product is obtained when 3-hexyne reacts with lithium in liquid ammonia? trans-3-hexene cis-3-hexene 1-hexene trans-2-hexene cis-2-hexene Which sequence of reactions will con…

What product(s) would you expect to obtain from the following S_N2 reaction? A)

What product(s) would you expect to obtain from the following S_N2 reaction? A) I B) II C) An equimolar mixture I and II D) III E) None of these The rate equation for a nucleophil…

What products are formed from the complete hydrolysis of a triglyceride? a. Glyc

What products are formed from the complete hydrolysis of a triglyceride? a. Glycerol and 3 fatty acids b. Glycerol and 2 fatty acids c. Glycerol and 1 fatty acid d. All of the abo…

What properties are important in liquid-liquid separations (multiple answer) tha

What properties are important in liquid-liquid separations (multiple answer) that the liquids are miscible that the pH of the aqueous phase is controlled the polarity of the molec…

What properties of a equation? realgs are accounted fot by the \"s and the venn

What properties of a equation? realgs are accounted fot by the "s and the venn the van der term of 17. The "a" term for Hois 52% larger than that co, however, the "b" term for Hp …

What property of a solution is described by its pH? A solution has a pH of 8.7.

What property of a solution is described by its pH? A solution has a pH of 8.7. a. What is the pOH of this solution? ____ b. Is the solution acidic, basic, or neutral? ____ Soluti…

What property primarily determines the effect of temperature on the solubility o

What property primarily determines the effect of temperature on the solubility of gas molecules? a. the kinetic energy of the gas b. the polarity of the gas c. the molecular weigh…

What purpose does FeCl_3 serve in the electrophilic aromatic substitution reacti

What purpose does FeCl_3 serve in the electrophilic aromatic substitution reaction between chlorine and benzene? It serves as a radical initiator to produce the chlorine radical n…

What quantity of energy does it take to convert 1.29 kg of ice at-23 degree c to

What quantity of energy does it take to convert 1.29 kg of ice at-23 degree c to water at 35 degree c? specific heat capacities: ice 2.03 J/log degree c) and liquid water 4.184 J/…

What rate law and integrated rate lets you calculate the time required to let yo

What rate law and integrated rate lets you calculate the time required to let your [CV+] change to half of its value at t=0? We want to find the rate law that describes how reacta…

What rate law and integrated rate lets you calculate the time required to let yo

What rate law and integrated rate lets you calculate the time required to let your [CV+] change to half of its value at t=0? Second order rate law and its integrated rate is usefu…

What reactants and reagents would be best for preparing 3,5-octadiene and why ?

What reactants and reagents would be best for preparing 3,5-octadiene and why ? a) 1,3-cyclopentadiene and KOH b) 6-Bromo-6-methyl-3-hexne followed by KOH and heat c) 7-Bromo-7-me…

What reactants and reagents would be best for preparing 3,5-octadiene and why ?

What reactants and reagents would be best for preparing 3,5-octadiene and why ? a) 1,3-cyclopentadiene and KOH b) 6-Bromo-6-methyl-3-hexne followed by KOH and heat c) 7-Bromo-7-me…

What reactants would give the following products? Which alkyl I chloride, though

What reactants would give the following products? Which alkyl I chloride, though primary, Is essentially uncreative in S_N2 reactions? Rank the following in terms of nucleophilic …

What reactants would give the following products? Which alkyl I chloride, though

What reactants would give the following products? Which alkyl I chloride, though primary, Is essentially uncreative in S_N2 reactions? Rank the following in terms of nucleophilic …

What reaction is catalyzed by aldolase? a) isomerization of dihyroxyacetone phos

What reaction is catalyzed by aldolase? a) isomerization of dihyroxyacetone phosphate to glyceraldehyde 3-phosphate b) ligation of glyceraldehyde 3-phosphate and dihydroxyacetone …

What reaction mechanism is most likely for substitution on the following compoun

What reaction mechanism is most likely for substitution on the following compound? S_N1 S_N2 Either Neither What reaction mechanism is most likely for substitution on the followin…

What reagent can be used to convert 1-hexyne to 2- hexynes? O3/2n/H3O BH3/H2O2/O

What reagent can be used to convert 1-hexyne to 2- hexynes? O3/2n/H3O BH3/H2O2/OH PCC(pyridnium chloroximate) HgSO4/H2SO4/H2O Identify three reagents from your "Reagents Sheet" th…

What remains after a sample undergoes two half-lives? a. 50 percent of the sampl

What remains after a sample undergoes two half-lives? a. 50 percent of the sample is composed of parent atoms, and 50 percent of the sample is composed of daughter atoms. b. 100 p…

What result might you get if some or silver or lead ions remained soluble when y

What result might you get if some or silver or lead ions remained soluble when you separated group two supernatant solution - in laler Steps? (Where would It go, what might happen…

What river has the steepest gradient? The Windy Canyon River falls 800 m from it

What river has the steepest gradient? The Windy Canyon River falls 800 m from its source along the 400 km of its run to its mouth The Snowy River falls 500 m from its source along…

What role does the GTPase activity of G proteins play within signaling pathways?

What role does the GTPase activity of G proteins play within signaling pathways? It produces cGMP, a second messenger. It terminates the signal of the G protein. It increases the …

What salt is produced in each of the following neutralization reactions? Part B:

What salt is produced in each of the following neutralization reactions? Part B: Drag the appropriate items to their respective bins. Part C: Which substances are always produced …

What sequence of reagents can be used to accomplish the conversion shown below?

What sequence of reagents can be used to accomplish the conversion shown below? 1. Br2,h?; 2. KOC(CH3)3; 3. NaOEt,EtOH 1. Br2,h?; 2. KOC(CH3)3; 3. RCO3H; 4. NaOEt,EtOH 1. Br2,h?; …

What sequence of synthetic steps will convert 1-iodo-2-methybutane into 2-methyb

What sequence of synthetic steps will convert 1-iodo-2-methybutane into 2-methybutan-2-ol? Select reactions from the list below. Enter the letter for each reaction in the order yo…

What should the molar concentrations of benzoic acid and sodium benzoate be in a

What should the molar concentrations of benzoic acid and sodium benzoate be in a solution that is buffered at a pH of 4.95 and has a freezing point of -2.0 ? C ? (Assume complete …

What should you do if a small amount of corrosive solution splashes on, hand or

What should you do if a small amount of corrosive solution splashes on, hand or skin? b. Under what circumstances is it necessary that a reaction be carried out in the fume hood? …

What should you do if you get conc. HCI on your skin? Flush immediately with ple

What should you do if you get conc. HCI on your skin? Flush immediately with plenty of water for at least 15 minutes and remove any contaminated as thing. Calculate the number of …

What should you see when the following compounds are mixed together with the giv

What should you see when the following compounds are mixed together with the given test solution? CH3CH2CH2-C-CH3 with 2,4-dinitrophenylhydrazine with Kl-I2 reagent with Tollens' …

What should you when you measure 4M H_2SO_4 and add it to the liltrate in What p

What should you when you measure 4M H_2SO_4 and add it to the liltrate in What precautions should you take when you wash the alum with in Step 24? Explain the following events, wh…