Chemistry concepts and calculations

9. Which of the following molecules has the highest boiling point? CH CH2OH CH O

9. Which of the following molecules has the highest boiling point? CH CH2OH CH OCH C CH,CH CI A D CH;CH2CH E CH,CH.I Treatment of secondary alcohols with PCC (pyridinium chlorochr…

9. Which of the following solutions has the greatest buffering capacity? [A] 0.2

9. Which of the following solutions has the greatest buffering capacity?    [A] 0.243 M HF and 0.192 M NaF    [B] 0.485 M HF and 0.383 M NaF    [C] 0.970 M HF and 0.766 M NaF    […

9. Which one of the following changes would cause the number of collisions betwe

9. Which one of the following changes would cause the number of collisions between molecules of gas to DECREASE? all choices. (a) Decreasing the temperature of gas Decreasing the …

9. Which process generally causes final failure in fatigue? A. Necking B. Corros

9. Which process generally causes final failure in fatigue? A. Necking B. Corrosion C. Fast fracture D. Elastic buckling E. Plastic instability 10. What is the stroke of a piston …

9. Which two compounds should change to a vibrant yellow, orange or red color wh

9. Which two compounds should change to a vibrant yellow, orange or red color when reacted with 2,4- DNP A. 2-methyl-2-propanol and 2-butanone B. acetaldehyde and 1-propanol C. 2-…

9. Why is solid K2CO3 much more soluble in water than hexane (CsH14)? 10. An exp

9. Why is solid K2CO3 much more soluble in water than hexane (CsH14)? 10. An experiment was conducted to analyze the favorability of folding for a short polypeptide consisting ent…

9. Write a complete working Python program that uses a 2D list (a list of lists)

9. Write a complete working Python program that uses a 2D list (a list of lists) to represent a 3x3 tic-tac-toe. The program shall randomly initialize each of the 9 cells with the…

9. Write in the reagent(s) over the arrow. a) C6H5N2^+ ---------> benzene b) C6H

9. Write in the reagent(s) over the arrow. a) C6H5N2^+ ---------> benzene b) C6H5C=N ----------> benzylamine 10. a) How would you prepare this nitrile from benzene using a d…

9. You are asked to measure out 0.1960g of ferrous ammonium sulfate hexahydrate

9. You are asked to measure out 0.1960g of ferrous ammonium sulfate hexahydrate to produce a 0.0050 M solution for the primary solution for a calibration curve, which will be dilu…

9. You are asked to measure out 0.1960g of ferrous ammonium sulfate hexahydrate

9. You are asked to measure out 0.1960g of ferrous ammonium sulfate hexahydrate to produce a 0.0050 M solution for the primary solution for a calibration curve, which will be dilu…

9. You are required to separate the three components of this mixturr, following

9. You are required to separate the three components of this mixturr, following the step-by-step procedure benzoic acid, phenol and benzene. a. you dissolve 5g of this mixture in …

9. You can create a negative indent, sometimes called a(n) ________________, by

9. You can create a negative indent, sometimes called a(n) ________________, by dragging the indent markers on the ruler to the left past the left margin, or by setting a negative…

9. You come across a flask in the laboratory containing a red foul-smelling liqu

9. You come across a flask in the laboratory containing a red foul-smelling liquid. A label found on the floor nearby has the formula Fe(CO)s written on it, but you are unsure if …

9. You come across a flask in the laboratory containing a red foul-smelling liqu

9. You come across a flask in the laboratory containing a red foul-smelling liquid. A label found on the floor nearby has the formula Fe(CO)s written on it, but you are unsure if …

9. [1pt] When current flows in an ionic solution, both negative and positive ion

9. [1pt] When current flows in an ionic solution, both negative and positive ions are charge carriers. In the dilute limit, the resistivity of the solution is inversely proportion…

9. a) (5 points) Determine the pH at the equivalence point when 0.05 M KOH is ti

9. a) (5 points) Determine the pH at the equivalence point when 0.05 M KOH is titrated with 50.0 ml of 0.01 M benzoic acid HC7H5O2. The Ka for benzoic acid is 6.3 x10-5 . FINAL AN…

9. a. The Dutch national flag problem is to rearrange an array of characters R,

9. a. The Dutch national flag problem is to rearrange an array of characters R, W, and B (red, white, and blue are the colors of the Dutch national flag) so that all the R?s come …

9. option C and D carbocations are secondary carbocation. so these carbocations

9. option C and D carbocations are secondary carbocation. so these carbocations tends to rearrange to form stable carbocation. secondary carbocation rearranges to more stable tert…

9. show work 8. What is the ionic strength of a solution that is 0.0250 M Na:SO,

9. show work 8. What is the ionic strength of a solution that is 0.0250 M Na:SO, and 0.0150 M Pb(NO,)? (4 pts) a. 0.0800 M b. 0.100 M c. 0.120 M d.0.0600 M e. None of the above 9.…

9. true or false? the categories of software applications are mutually exclusive

9. true or false? the categories of software applications are mutually exclusive A. true B. false 10. true or false? if you want to compare the impact of using web apps instead of…

9.) As mentioned below, you are required to design your own procedure for determ

9.) As mentioned below, you are required to design your own procedure for determining the heat of dissolution of your chosen salt with a coffee cup calorimeter. Answer the followi…

9.) As mentioned below, you are required to design your own procedure for determ

9.) As mentioned below, you are required to design your own procedure for determining the heat of dissolution of your chosen salt with a coffee cup calorimeter. Answer the followi…

9.) Consider the equilibrium system C(s) + CO2(g) = 2CO(g) If more C(s) is added

9.) Consider the equilibrium system C(s) + CO2(g) = 2CO(g) If more C(s) is added, the equilibrium will -irco is removed the equilibrium will a. shift to the left; shift to the lef…

9.) In growing your alum crystals, you will need to make 40 mL of a saturated so

9.) In growing your alum crystals, you will need to make 40 mL of a saturated solution of alum. a.) How will you determine how much alum you need to make 40 mL of your solution? (…

9.0-mL sample of 0.128 M diprotic acid (H2A)solution is titrated with 0.1040 M K

9.0-mL sample of 0.128 M diprotic acid (H2A)solution is titrated with 0.1040 M KOH. The acid ionization constants for the acid are Ka1=5.2×10?5 and Ka2=3.4×10?10. Part A At what a…

9.0.1 moles of weak acid is dissolved into 1L of water and the pH is 3.2. What s

9.0.1 moles of weak acid is dissolved into 1L of water and the pH is 3.2. What s the percentage ionization? 4.3percentage 1.6 percentage 0.63 percentage 5.0 percentage not enough …

9.1 The Fate of Organic n Soll-CHM LEL 12-Introductory Environmental Chemistry (

9.1 The Fate of Organic n Soll-CHM LEL 12-Introductory Environmental Chemistry (2 880 4 ent Discussions Dropbox Quizzes Classlist Grades Time Left:0-39-48 Adewale Rasheed: Attempt…

9.10: Reverse Array Write a function that accepts an int array and the array ’s

9.10: Reverse Array Write a function that accepts an int  array and the array ’s size as arguments . The function should create a copy of the array , except that the element  valu…

9.15) Use the following data to calculate average values of B(Se-F) in SeF4 and

9.15) Use the following data to calculate average values of B(Se-F) in SeF4 and SeF6. Comment on your answers in the view of corresponding values for B(S-F) in SF4 = +340 kJ mol-1…

9.2 TC LuD Questions secti De .4 18 ate the volume of 5 mM potassium chloride (K

9.2 TC LuD Questions secti De .4 18 ate the volume of 5 mM potassium chloride (KCl) required to produce 50 mL of each of the star solutions s d KCi Record your results in Table 9.…

9.2. The standard heat of combustion of liquid n-octane to form CO2 and liquid w

9.2. The standard heat of combustion of liquid n-octane to form CO2 and liquid water at 25 and i atmis AH:--5471 kJ/mol. (a) Briefly explain what that means. Your explanation Brie…

9.2. The standard heat of combustion of liquid n-octane to form CO2 and liquid w

9.2. The standard heat of combustion of liquid n-octane to form CO2 and liquid water at 25°C and 1 atm is AH 5471 kJ/mol (a) Briefly explain what that means. Your explanation may …

9.31 The capture of CO2 by MOFs from post-combustion gas mixtures has been propo

9.31 The capture of    CO2    by MOFs from post-combustion gas mixtures has been proposed to reduce    CO2    emissions from coal-fired power plants. The challenge is to engineer …

9.4 Dehydration of Hydrates -Data Sheet Date: Name: Instructor: Section/Group Un

9.4 Dehydration of Hydrates -Data Sheet Date: Name: Instructor: Section/Group Unknown Hydrate Code Initial observations of your unknown Initial mass crucible +lid Initial mass cru…

9.41 Rank the following bases in order from slowest E2 reaction rate to fastest.

9.41 Rank the following bases in order from slowest E2 reaction rate to fastest. 0 H20 ONa 9.42 Rank the following substrates in order from slowest S 1 reaction rate to fastest. B…

9.50.00 mL of 0.10 M HNO2 (nitrous acid, Ka = 4.5 × 104) is titrated with a 0.10

9.50.00 mL of 0.10 M HNO2 (nitrous acid, Ka = 4.5 × 104) is titrated with a 0.10 M KOH solution. After 25.00 mL of the KOH solution is added, the pH in the titration flask will be…

9.56. Choose one of the given causes as the best explanation of each of the effe

9.56. Choose one of the given causes as the best explanation of each of the effects listed later. CAUSES: (1) Scandide contraction. (2) Lanthanide contraction. (3) Relativistic i …

9.7. Given the following ground-water analysis at 25°C: Ca-134mgl; Mg 44 mg/l; N

9.7. Given the following ground-water analysis at 25°C: Ca-134mgl; Mg 44 mg/l; Na-145 mg/l; S04 429 mg/l; HCO3-412 mgl: Cl-34 mg/: pH-8.0: TDS-1205 mg/l (A) Convert all analyses i…

9.91 L of a solution containing 1.05 × 1020 FU cesium nitrate/L = 9.91L * 1.05*1

9.91 L of a solution containing 1.05 × 1020 FU cesium nitrate/L    = 9.91L * 1.05*10^20 FU cesium nitrate/L                                                                        …

9.Nickel, a common metal used in a variety of alloys, is purified via the Mond p

9.Nickel, a common metal used in a variety of alloys, is purified via the Mond process to a very high (> 99.99%) purity. One of the steps in the Mond process involves the react…

9.Which of the following statements is true concerning the titration of a weak b

9.Which of the following statements is true concerning the titration of a weak base by a solution of hydrochloric acid? A.At the equivalence point, the pH is 7. B.At the equivalen…

9/ A Student is asked to prepare a buffer solution at pH = 3.6, which one of the

9/ A Student is asked to prepare a buffer solution at pH = 3.6, which one of the following weak acids should be used? (a) NH4OH (Kb=1.8x10-5) (b) HA (Ka=2.7 x10-4) (c) HB (Ka=1.5x…

9/1/2018 11:59 PM A 66.2/100 20 of 24 University Science Books presented by Sapl

9/1/2018 11:59 PM A 66.2/100 20 of 24 University Science Books presented by Sapling Learning General Chemistry 4th Edition In a certain city, electricity costs $0.19 per kW h. Wha…

9/13/2018 11:30 PM 8.1/15 Print CalculatorPeriodic Table 3 Gradebod uestion 10 o

9/13/2018 11:30 PM 8.1/15 Print CalculatorPeriodic Table 3 Gradebod uestion 10 of 13 IncorrectIncorrect Sapling Learning Map de Assuming equal concentrations and complete dissocia…

9/23/2015 11:55 PM 85.7/100 Gradebook PrintCalculator Periodic Table Question 7

9/23/2015 11:55 PM 85.7/100 Gradebook PrintCalculator Periodic Table Question 7 of 7 Map sapling learning Consider the hypothetical serine protease below, which shows the specific…

90 86 84 pure liquid 80 first crystals appear 76- 74 72 70 freezing pure solid t

90 86 84 pure liquid 80 first crystals appear 76- 74 72 70 freezing pure solid time, min Figure 1 Cooling curve for pure naphthalene 80 78 76 74 72 70 68 temperature only liquid i…

90% dow Help e teaching and i x CovalentActivity.do?locator-assignment-take&take

90% dow Help e teaching and i x CovalentActivity.do?locator-assignment-take&takeAssignmentSessionLocator-assig; Updates Ready to Some apps current preventing automat ? Use the…

90.pd file:///C:AUsers/ladmin/Downloads/hw3 7790 pdf colletworkturhen D Buckeye

90.pd file:///C:AUsers/ladmin/Downloads/hw3 7790 pdf colletworkturhen D Buckeye lnk ImlCarmen |lderttysnd Access M D osu writng Center No row is allowed to have less than two ""'s…

900 700 Carbon disulfide E 600 E u 500 E 400 300 8 200 100 Ethanol Heptane 10 20

900 700 Carbon disulfide E 600 E u 500 E 400 300 8 200 100 Ethanol Heptane 10 20 30 40 50 60 70 80 90 100 110 Temperature (°c) 13) Based on the figure above, at what pressure woul…

91. Suppose we have a byte-addressable computer using direct mapping with 16-bit

91. Suppose we have a byte-addressable computer using direct mapping with 16-bit main memory addresses and 32 blocks of cache. If each block contains 8 bytes, determine the size o…