Chemistry question and answers for October 05, 2023
- Q You are fractionally distilling 100 mL of a 1:1 solution ofcyclohexane and toluene. After 2 mL has distilled you collect asample for analysis. It is determined that your sample contains...
- Q Shell model for NH 3 (H atomic #1, mass#1, N atomic #7,mass#14
- Q How many grams of dipotassium succinate trihydrate(K2C4H4O4·3H2O, MW = 248.32 g/mol) must be added to 800.0 mL of a0.0417 M succinic acid solution to produce a pH of 5.974? Succinicacid...
- Q Write a balanced reaction that describes the conversion ofSpessartine (Mn3Al2Si3O12) to Tephroite (Mn2SiO4), Kyanite(Al2SiO5), and Quartz (SiO2)Please show work and explain.
- Q Pure phosgene gas (COCl2), 0.0340 mol, was placed ina 1.30-L container. t was heated t o730.0 K, and at equilibrium,the pressure of CO was found to be 0.513 atm. Calculate...
- Q A compound dissolved in methanol and need to remove bydistillation because heat is sensitive, a person hesitate to raittemp above 0C and instead decide to use vacuum distillaion. Whatrequired pressure...
- Q Please show the mechanism of RCHO or a ketone reacting with anucleophile.
- Q The equilibrium constant  for the reaction CCl4(g) =C(s) + 2Cl2(g)at 700ºC is 0.85. Determine the initial pressure of carbontetrachloride that will produce a total equilibrium pressure of2.30 atm at 700ºC.
- Q 10.00mL of 1.000M HA (a weak acid) was mixed with 5.00mL of0.500M NaOH. Then the mixture was diluted to 50.0.mL with distilledwater. The pH of the solution read 5.00.1) What...
- Q in the gas-phase reaction A + B --> C + 2D, it was found thatwhen 2 mole A, 1 mole B, and 3 mole D were mixed and allowed tocome...
- Q Consider the titration of 30.0 mLof 0.030 M NH3 with 0.025 M HCl.Calculate the pH after the following volumes of titrant have beenadded.(a) 35.0 mL(b) 36.0 mL(c) 37.0 mL
- Q 10.5 mL of 0.100M ammonium chloride aqueous solution is titratedwith 0.100 M NaOH(aq).What type of solution is present when VNaOH = 2.00mL?Select one:a. strong acidb. strong basec. weak acidd. weak...
- Q True or False1.For the following reaction at equilibrium:                      CaCO3(s) ⇌ CaO(s) + CO2(g)                      increasing the total pressure by adding Ar(g) will shift theequilibrium to the left.2.For the following reaction at equilibrium:                      H2(g) +...
- Q My compound is 2,4-Dimethyl-1-Pentanol1.      Retrosynthetic analysis ofyour compound: What is a possible precursor?   What arethe reagents you need to obtain your product when using thisprecursor?     2.      In a drawing, show thesynthetic...
- Q Whatis the pH of a 0.5 M solution of NaHCO3? Kb= 2.4x10-8,hint this is a base!
- Q Calculate the cell emf for the following reaction at 25°C:2Ag+(0.010 M) + H2(1 atm) ? 2Ag(s) + 2H+(pH = 8.00)
- Q What mass of sucrose (C12H22O11) should be combined with 461g ofwater to make a solution with an osmotic pressure of 8.20atm at305K ? (Assume the density of the solution to...
- Q Calculate the EMF of the cell:Al(s) | Al3+ (0.02 M) || Au+ (0.01 M) | Au(s)Where Al3+ + 3e- ï‚® Al E o= -1.66 VWhere Au+ + e- ï‚® Au...
- Q Reorganize the following list of cations in the order ofstrongest to the weakest potential for hydrolysisCa2+, Ba2+, Cs+, Li+, Cr3+, Fe3+, Pb4+, Na+, K+, Mg2+Thanks!!
- Q Caproic acid is composed of C, H, and O atoms. Combusting a0.450 gram sample of the compound in air produces 1.024 grams CO2and 0.418 grams H2O. The molecular weight of...
- Q It turns out it is much easier to synthesize nylon-6,6 fromthe appropriate diamine and diacid chloride. provide a reactionmechanism for the synthesis of this diacid chloride from hexandioicacid (including all...
- Q When 100 mL of an aqueous solution containing 1.0 g of caffeineis extracted with 10 mL of chloroform at room temperature, 0.5 g ofcaffeine is transferred to the chloroform layer....
- Q How can you ensure a quantitative transfer of your productduring transfer steps? What would be the expected frequency range(in cm-1) of the C=O stretch in 2,4-pentanedoine? Based on thestructural differences,...
- Q alculate the pH of the following solutions.Part ASolution prepared by dissolving 5.5g of lithium hydroxide inwater to give 230mL of solution.Express your answer using two decimal places.pH =SubmitMy AnswersGive UpPart...
- Q The picture below shows two bulbs connected by a stopcock. The6.00-L bulb contains nitric oxide at a pressure of 0.400 atm, andthe 1.50-L bulb contains oxygen at a pressure of...
Get Answers to Unlimited Questions
Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!
Membership Benefits:
- Unlimited Question Access with detailed Answers
- Zin AI - 3 Million Words
- 10 Dall-E 3 Images
- 20 Plot Generations
- Conversation with Dialogue Memory
- No Ads, Ever!
- Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!