Chemistry concepts and calculations
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8. Using the balanced reaction shown below: C3H4 (g) + 3O2 ? 2CO2(g) + 2H20(1) H
8. Using the balanced reaction shown below: C3H4 (g) + 3O2 ? 2CO2(g) + 2H20(1) How many moles of oxygen are required to form 12 moles of CO2 in the presence of excess C2H4? ? a 18…
8. Using the standard reduction potentials Ni 2+ ( aq ) + 2 e Ni( s ) 0.25 volt
8. Using the standard reduction potentials Ni2+(aq) + 2 eNi(s) 0.25 volt Fe3+(aq) + eFe2+(aq) +0.77 volt Calculate th…
8. We learned that four new molecular orbitals are created from the p orbitals f
8. We learned that four new molecular orbitals are created from the p orbitals for each carbon atom in the butadiene molecule (the axes perpendicular to the page). Which statement…
8. What are the possible m values for the each of the following types of orbital
8. What are the possible m values for the each of the following types of orbitals? a. s b. p c. …
8. What command would I use to make a copy of the file \"~/Desktop/HIGH2.txt\" a
8. What command would I use to make a copy of the file "~/Desktop/HIGH2.txt" and name it '~/Downloads/one/two/two.txt'. (assume the directories under ~/Downloads exist) (5 points)…
8. What is the above concentration in ppm? 9. 50 ppm of a Nacl solution M. a 10.
8. What is the above concentration in ppm? 9. 50 ppm of a Nacl solution M. a 10. Ca(NO, 2 4H20 (MW 236.5) Ca(NO MW-164.15 A recipe calls for 100 g of anhydrous Ca(NO However, all …
8. What is the difference between hot working and cold working? a. Hot working i
8. What is the difference between hot working and cold working? a. Hot working is done at temps above the recrystallization temperature, clod working is below the recrystallizatio…
8. What is the maximum number of electrons in an atom that can have the followin
8. What is the maximum number of electrons in an atom that can have the following set of quantum numbers? a) I b) 2 c) 6 d) 10 Your answer: 19. The standard enthalpy change for th…
8. What is the maximum number of electrons in an atom that can have the followin
8. What is the maximum number of electrons in an atom that can have the following set of quantum numbers? a) I b) 2 c) 6 d) 10 Your answer: 19. The standard enthalpy change for th…
8. What is the purpose for using catalysts in reactions? 9. Determine the rate e
8. What is the purpose for using catalysts in reactions? 9. Determine the rate expression for the following data. AJo (mol/L) 0.100 0.100 0.200 Alo [Blo (mol/L) 0.100 0.200 0.200 …
8. What kind of sampling strategy would you use in the following situations? Tak
8. What kind of sampling strategy would you use in the following situations? Take into consideration the spatial and temporal variability you expect to encounter. What type of sam…
8. What reaction does glucose 6-phosphatase catalyze? Where is this enzyme locat
8. What reaction does glucose 6-phosphatase catalyze? Where is this enzyme located? 9. How many NTPs are expended in producing PEP from pyruvate? How many NTPs does it require to …
8. When solid NH4NO3 is placed in water, it dissolves:chemical AHr (kJ/mol) 0 39
8. When solid NH4NO3 is placed in water, it dissolves:chemical AHr (kJ/mol) 0 393.5 0 -208.4 824.2 167.2 0 -241.8 285.8 0 80.3 365.6 132.5 -205.0 NH4NO3 (s)NH4 (aq) + NO3 (aq) CO2…
8. Whic h ground-state atom has an electron configuration described by the follo
8. Whic h ground-state atom has an electron configuration described by the following orbital dsgram? 3d 1s A) phosphorus B) germanium elenium ) tellurium none of these 9. Give the…
8. Which (if any) after being dissolved in diethyl ether, will: (6 points) b) Ex
8. Which (if any) after being dissolved in diethyl ether, will: (6 points) b) Extract into HCVH 0? c Extract into neutral water? a) Extract into NaOH/H20? 9. Rank the following in…
8. Which conjugate acid base pair is not correct 1. Which weak acid yields a buf
8. Which conjugate acid base pair is not correct 1. Which weak acid yields a buffer solution closest tp neutral pH when paired with an equal concentration ofits (A) HSO and SO con…
8. Which is a structural formula for the molecule CaH6? a) CaHs b) CH2 c) CHs d)
8. Which is a structural formula for the molecule CaH6? a) CaHs b) CH2 c) CHs d) What is the atomic number of nitrogen? a) 7 b) 14.01 c) 28 d) 58.69 9. 10. Which group on the peri…
8. Which of the following INCORRECTLY pairs the hormone(s) needed to achieve the
8. Which of the following INCORRECTLY pairs the hormone(s) needed to achieve the effect listed? a. active vitamin D—increase in calcium absorption in the small intestine b. active…
8. Which of the following additions to alkenes occurs) specifically in an syn fa
8. Which of the following additions to alkenes occurs) specifically in an syn fashion? A) dihydroxylation using Os04, H202 B) addition of H2 C) hydroboration D) addition of HCI E)…
8. Which of the following anions is the strongest base? a. NH2 b. NH3 c. CH3CH-N
8. Which of the following anions is the strongest base? a. NH2 b. NH3 c. CH3CH-N d. CHaCEN 9. Which of the following are ethers? a. only 1 and 2 b. only 1 and 4 c. only 1, 2 and 3…
8. Which of the following chemical equations is correct to represent the reactio
8. Which of the following chemical equations is correct to represent the reaction of: Barium chloride reacts with iron (III) phosphate to produce barium phosphate and iron (III) c…
8. Which of the following expressions will evaluate to true only if there are an
8. Which of the following expressions will evaluate to true only if there are an exact number of prizes (1 or more) for each participant? (Assume that num_participants is not zero…
8. Which of the following ionizes partially? a) strong acid c) acidic salt b)wea
8. Which of the following ionizes partially? a) strong acid c) acidic salt b)weak acid basic salt 9. A proton donor in the reverse direction is a) an acid b) a base d) a conjugate…
8. Which of the following shows the reaction associated with the standard format
8. Which of the following shows the reaction associated with the standard formation of a compound? heat of 7. Which of the following is an endothermic process (the system is n- a.…
8. Which of the following statements about chitin is TRUE? -Chitin is a structur
8. Which of the following statements about chitin is TRUE? -Chitin is a structural polymer found in some algae and fungi cells. -Chitin is a linear polymer. -Chitin is a polymer o…
8. Which one of the following is a property of most metals? A) low melting point
8. Which one of the following is a property of most metals? A) low melting point B) brittleness C) high electronegativity D) thermal conductivity E) acidic oxides D) moles solute/…
8. Which one of the following is correct name with its formula? A) barium acetat
8. Which one of the following is correct name with its formula? A) barium acetate: Ba(C2H302)2 B) sodium sulfide Na2SO3 C) iron(II) sulfate : Fe2(SO4)s D) cesium carbonate :CsCO E…
8. Which statement below is NOT correct for the pH of a 0.01 M NaCl solution ver
8. Which statement below is NOT correct for the pH of a 0.01 M NaCl solution versus the pH of a 0.01 M in FeSO4 solution? Why? A) The activity coefficient for H+ wi…
8. Which substance has the lowest standard molar when ,\" is less than zero, the
8. Which substance has the lowest standard molar when ," is less than zero, the value of K is at 25*C? 64. (B) betweem zero and one. (A) NO(E) (C) N,OAp) (B) NO(g (D) N,Ofg) (A) l…
8. Will a solution of NHaF be acidic, basic, or neutral? Ka for NH\' = 5.5 x 10-
8. Will a solution of NHaF be acidic, basic, or neutral? Ka for NH' = 5.5 x 10-10. Kb for F-1.4 x 10-11. (a) Acidic because NHa is a stronger acid than F is a base. (b) Acidic bec…
8. Write a balanced chemical equation for the reaction of a general acid (HA) wi
8. Write a balanced chemical equation for the reaction of a general acid (HA) with base (water). Derive the Henderson-Hasselbalch (HH) equation that describes this reaction. Rewri…
8. You have assayed the activity of amylase under two separate NaCl concentratio
8. You have assayed the activity of amylase under two separate NaCl concentrations. The starting concentration of your starch solution is 2 mg/ml, and you have conducted the assay…
8. You have been tasked with disposing of some radioactive waste from the manufa
8. You have been tasked with disposing of some radioactive waste from the manufacture of medical imaging agents. The main radioactive isotope in this waste is 131 I (which has a h…
8. You need to use cinnamaldehyde in a reaction. As you measure it out, somethin
8. You need to use cinnamaldehyde in a reaction. As you measure it out, something about its appearance raises your suspicion that the sample is not quite pure, and you decide to i…
8. You receive the following prescription: R x : APAP 325 mg Diphenhydramine HCl
8. You receive the following prescription: Rx: APAP 325 mg Diphenhydramine HCl 25 mg Atropine SO4 0.12 mg Caffeine 30 mg Lactos…
8. You take a rock, tie it to the end of a string, and swing it in a circle abov
8. You take a rock, tie it to the end of a string, and swing it in a circle above your head at the rate of 30 revolutions per minute. You then double the length of the string whil…
8. Your task is to create a script called thisPlot. This script should do the fo
8. Your task is to create a script called thisPlot. This script should do the following: % a. Ask the user to enter in a positive number, N, greater than 5. % b. Calculate the fac…
8. [10] Consider the following code: public void run() { System.out.print(\"GREE
8. [10] Consider the following code: public void run() { System.out.print("GREEN"); System.out.print("RED"); } public void execute() { ExecutorService executor = Executors.newCach…
8. [21 of vari gallons per day). Determine: Water treatment plant needs to softe
8. [21 of vari gallons per day). Determine: Water treatment plant needs to soften water containing the below concentration e. Assume the pH is near neutral and that the flowrate i…
8. [Intro. analytical chemistry] - please solve and show work / and explanations
8. [Intro. analytical chemistry] - please solve and show work / and explanations: (if the process towards the answer would be obscure without one) and include uncertainty in answe…
8. a) What is the purpose of the Quantum Mechanic theory of the atom? b ) State
8. a) What is the purpose of the Quantum Mechanic theory of the atom? b) State the two assumptions of the quantum mechanic theory. c) The four quantum numbers can be considered as…
8. a) Write the electronic configuration for Na(atomic + 1) as per charge indica
8. a) Write the electronic configuration for Na(atomic + 1) as per charge indicates. b) How many orbitals are there in a s sub-shell? In a p sub-shelt? In a d sub-sheltl? naf sub-…
8. a. What is the molarity of a solution of calcium chloride which contains 3350
8. a. What is the molarity of a solution of calcium chloride which contains 33500 mg of solute in a total volume of 0.352L? b. What is the molarity of a solution of LiI which cont…
8. no of moles of HC2H3O2 = molarity * volume in L = 0.15*1 = 0.15 moles no of m
8. no of moles of HC2H3O2 = molarity * volume in L = 0.15*1 = 0.15 moles no of moles of C2H3O2^- = molarity * volume in L …
8.(8) Consider a process for the partial oxidation of benzene to produce maleic
8.(8) Consider a process for the partial oxidation of benzene to produce maleic anhydride (C4H203) using air There are two reactions to be concerned with: The first partially oxid…
8.(8) Consider a process for the partial oxidation of benzene to produce maleic
8.(8) Consider a process for the partial oxidation of benzene to produce maleic anhydride (C4H203) using air There are two reactions to be concerned with: The first partially oxid…
8.) (10) Evaluate the following expressions: a. fabs(-5.7) e. sqrt(-4.0) b. pow(
8.) (10) Evaluate the following expressions: a. fabs(-5.7) e. sqrt(-4.0) b. pow(3.0,4.0) f. floor(6.7) c. sqrt(100) g. ceil(4.1) d. floor(-10.3) h. ceil(-4.1) 9.) (8) Print the fo…
8.) (2 pts) For a competitive inhibitor. If the ] 1/2K, and IS- 3K.m. What is th
8.) (2 pts) For a competitive inhibitor. If the ] 1/2K, and IS- 3K.m. What is the reaction velt (expressed as a percentage of Vmax) 9.) (2 pts) For a noncompetitive inhi (expresse…
8.) Consider the acid-catalyzed reaction Ch3COCH3 + Br2 ----> CH3COCh3Br + H^+ +
8.) Consider the acid-catalyzed reaction Ch3COCH3 + Br2 ----> CH3COCh3Br + H^+ + Br The following initial data was colle…
8.) For the reaction c(s) + CO2(g) = 2CO(g) Kc = 168. A mixture contains some C(
8.) For the reaction c(s) + CO2(g) = 2CO(g) Kc = 168. A mixture contains some C(s), [CO]-0.50 M and [CO2] = 0.75 M. Therefore the systema a. is not; the value of Q is 0.67 b. is n…
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