Chemistry concepts and calculations

5C2O42- + 2MnO4- + 16H+ ?10CO2 + 2Mn2+ + 8H2O A 0.250 g sample of Na2C2O4 requir

5C2O42- + 2MnO4- + 16H+ ?10CO2 + 2Mn2+ + 8H2O A 0.250 g sample of Na2C2O4 requires 22.15 mL of a certain KMnO4 solution to reach the end point during a titration.  What is the con…

5CH3C(=O)H (supposed to be an aldehyde group) + 2MnO4- + 6H+ --> 5CH3C(=O)OH (a

5CH3C(=O)H (supposed to be an aldehyde group) + 2MnO4- + 6H+ --> 5CH3C(=O)OH (a carboxyl group) + 2Mn 2+ +3 H2O. I'm supposed to tell which is the oxidizing agent and which is …

5CH3C(=O)H (supposed to be an aldehyde group) + 2MnO4- + 6H+ --> 5CH3C(=O)OH (a

5CH3C(=O)H (supposed to be an aldehyde group) + 2MnO4- + 6H+ --> 5CH3C(=O)OH (a carboxyl group) + 2Mn 2+ +3 H2O. I'm supposed to tell which is the oxidizing agent and which is …

5For the reaction A+B+CD+E, the initial reaction rate was measured for various i

5For the reaction A+B+CD+E, the initial reaction rate was measured for various initial concentrations of reactants. The following data were collected: Trial [A] (M) [B] (M) [C] (M…

5Note: 1) Answers need to be clearly legible. 2) Each answer must be explained a

5Note: 1) Answers need to be clearly legible.    2) Each answer must be explained as to the reasoning behind it so I can learn it.    3) Take your time and make it comprehensive. …

5· The equilibrium constant, Kp, for the gas phase isomerization of borneol (C10

5· The equilibrium constant, Kp, for the gas phase isomerization of borneol (C10HnOH) to isoborneol at 503 K is 0.106. 21.50 g of borneol is placed in a container of volume 6.25 l…

5· The same so.0mL buret is used to deliver five 350ml. aliquots of a solution t

5· The same so.0mL buret is used to deliver five 350ml. aliquots of a solution to separate flasks. What is a source of imprecision in these measurements? The buret has an imperfec…

5· The titration curve is shown below 13 (A) a strong acid is titrated with a st

5· The titration curve is shown below 13 (A) a strong acid is titrated with a strong base (B) a weak acid is titrated with a strong base (C) a strong acid is titrated with a weak …

6 (2 of 15) A given molecule is predicted to have a pK of 6.8. Given this inform

6 (2 of 15) A given molecule is predicted to have a pK of 6.8. Given this information which of the following statements is correct? O The molecule would be a good buffer to mimic …

6 . Benedict\'s solution contains Copper, which can accept electrons from reduci

6 . Benedict's solution contains Copper, which can accept electrons from reducing sugars and consequently change color. A positive Benedict's sugar test will produce an orange to …

6 1 Which of the following statements is false? To eject an electron from the su

6 1 Which of the following statements is false? To eject an electron from the surface of a metal, the wavelength of electromagnetic radiation must exceed the threshold wavelength …

6 10. Complete the table below: WATCH FOR FRACTIONS mol H:OExcess molCH Excess m

6 10. Complete the table below: WATCH FOR FRACTIONS mol H:OExcess molCH Excess mol O2 4 molClick here Click here to Click here to enter Click here to enter to enter enter text tec…

6 12/17/2016 10:55 PM 6/10 12/8/2016 11:49 PM Print Calculator Periodic Table Qu

6 12/17/2016 10:55 PM 6/10 12/8/2016 11:49 PM Print Calculator Periodic Table Question 6 of 13 Assume that the volume remains constant when the base is added. Calculate the pKaval…

6 47) Write the name for SnS. A) tin sulfide B) stannous sulfide C) stannous sul

6 47) Write the name for SnS. A) tin sulfide B) stannous sulfide C) stannous sulfate D) stannic sulfide E) stannic sulfate 48) What is the volume (in cm3) of a 436 g iece of metal…

6 A doubly-bonded carbon (like in ethylene) is reactive to A Polymerization B Ad

6 A doubly-bonded carbon (like in ethylene) is reactive to A Polymerization B Addition of HCI C Oxidation by oxygen D Addition of water E All of the above 7 Alpha-olefins, like st…

6 CO 2 (g) + 6H 2 O(l) ------> 6O 2 (g)+ C 6 H 12 O 6 (s) dH=? Using the heat of

6 CO2(g) + 6H2O(l) ------> 6O2(g)+ C6H12O6(s) dH=? Using the heat of formation values from Appendix L of the 9th edition of Kotz, Treichel & Townsend (and for C6H12O6(s), t…

6 Change Authorization Software defects have to be analyzed once reported. The a

6 Change Authorization Software defects have to be analyzed once reported. The analysis is essential for both functional and economic reasons. Obviously, it is hard to make a deci…

6 Dinitrogen monoxide N20- Known also as nitrous oxide and laughing gas-was one

6 Dinitrogen monoxide N20- Known also as nitrous oxide and laughing gas-was one of carly anesthetics, and has recently regained popularity in this role in the dental ficld. It is …

6 Explin why mercury in a glass capillar has a meniscus that is convex and goes

6 Explin why mercury in a glass capillar has a meniscus that is convex and goes down the wall. 7.-Identify the difference phases, the equilibrium between phases and the degree of …

6 Explin why mercury in a glass capillar has a meniscus that is convex and goes

6 Explin why mercury in a glass capillar has a meniscus that is convex and goes down the wall. 7.-Identify the difference phases, the equilibrium between phases and the degree of …

6 H 3 BO 3 ---> H 4 B 6 O 11 + 7 H 2 O Using the balanced equations from the rea

6 H3BO3   --->  H4B6O11   +   7 H2O    Using the balanced equations from the reactionsabove, determine the following: If I have 2 moles ofH3BO3 , how many gramsof H4B6O11 willf…

6 H+ (aq) + 2 MnO4- (aq) + 5 H2C2O4 (aq) --> 10 CO2 (g) + 2 Mn2+ (aq) + 8 H2O (l

6 H+ (aq) + 2 MnO4- (aq) + 5 H2C2O4 (aq) --> 10 CO2 (g) + 2 Mn2+ (aq) + 8 H2O (l) (a) What species is oxidized in the reaction? ______________________ (b) What species is reduc…

6 How much heat is liberated constant pressure when L93gofpotassium ml ofliquid

6 How much heat is liberated constant pressure when L93gofpotassium ml ofliquid iodine monochloride g/mL)? kumol 740.71 A) -10 B) 7.4 10 co 104.10 D) 1.83 10 EO 222 10 4CHR.what v…

6 In the E: elimination of H and Br from 2-bromo-2-methyl- butane (sown below) w

6 In the E: elimination of H and Br from 2-bromo-2-methyl- butane (sown below) with potassium hydroxide, which pH 28. What are the major product(s) likely to be obtained from the …

6 Pre-Laboratory Assignment SectionOLL Date l121 120)7 Na Classifying Chemical R

6 Pre-Laboratory Assignment SectionOLL Date l121 120)7 Na Classifying Chemical Reactions ts used in this esperiment are flammable? Discuss the safety precautions that are necessar…

6 Quality Software In your opinion, what are two key characteristics that mark,

6 Quality Software In your opinion, what are two key characteristics that mark, and distinguish, quality software? Explain, and support your choices. Which metrics would you use t…

6 S15%20101b%20Exam%202%20form%20A%20KEYpdf (page 2 of 6) DAQ CH + HCI CO, > N-H

6 S15%20101b%20Exam%202%20form%20A%20KEYpdf (page 2 of 6) DAQ CH + HCI CO, > N-H CI" B. Draw the major product. If there is no reaction, write NR, or no reaction. +4 H*, heat N…

6 The cyclobutadiene molecule (C4H4) deviates high-symmetry square geometry to c

6 The cyclobutadiene molecule (C4H4) deviates high-symmetry square geometry to compensate for its antiaromatic from a synthesized. electronic structure. A silicon analog of diene,…

6 The moon Titan which orbits Saturn is known to have a dense atmosphere and lar

6 The moon Titan which orbits Saturn is known to have a dense atmosphere and large pools of liquid methane rather than liquid water. Imagine that we evolved there instead of on ea…

6 The oxidation number of N in NaNOs is D)-3 E) none of these A) +6 B) +5 C) +3

6 The oxidation number of N in NaNOs is D)-3 E) none of these A) +6 B) +5 C) +3 What volume of a 0.580 M solution of calcium chloride contains 1.28 g of solute? A) 2.21 ml B) 34.2…

6 There are O.027g of lactic acid (GsHos) found in a 250 mL blood serum sample.

6 There are O.027g of lactic acid (GsHos) found in a 250 mL blood serum sample. ) found in a 250 mL sample. a. What is the lactic acid concentration in molarity b. if the normal r…

6 Two conductors are made of the same material and have the same length. Conduct

6 Two conductors are made of the same material and have the same length. Conductor A is a solid wire of diameter 1.0 mm. Conductor B is a hollow tube of outside diameter 2.0 mm an…

6 Using the method that we learned in class to estimate specific gravities and g

6 Using the method that we learned in class to estimate specific gravities and given the following atomic weights (C 12, H 1. N 14. o 6), which compound has a density closest to t…

6 What is the molar solubility of cadmium hydroxide, Cd(OH) 2 in pure water at 2

6 What is the molar solubility of cadmium hydroxide, Cd(OH)2 in pure water at 25 oC? Note that KSP for Cd(OH)2 is 5.3 x 10-15 at 25 oC IMPORTANT: Enter your answer in scientific n…

6 What is the order of decreasing reactivity towards nucleophilic acyl substitut

6 What is the order of decreasing reactivity towards nucleophilic acyl substitution for the carboxylic acid derivatives? (most reactive first C) IIL, IL IV 37 Which of the followi…

6 When 26.0 mL of HNO 3 is titrated with 22.0 mL of 0.150 N NaOH, what is the no

6 When 26.0 mL of HNO3 is titrated with 22.0 mL of 0.150 N NaOH, what is the normalityof the HNO3?                                                                                 …

6 Write the equation for the reversible reaction of phosphoric acid and water. 7

6 Write the equation for the reversible reaction of phosphoric acid and water. 7 Calculate K, of a weak acid, where [Ho+] 2.500x10 M and the ratio of the concentration of the salt…

6 a. Na has largest atomic radious. Explanation: Across a period, atomic radius

6 a. Na has largest atomic radious. Explanation: Across a period, atomic radius decreases from left to right within a period due to the  increase in number of protons and electron…

6 complete the following table of Trial I (see Report sheer) for determining the

6 complete the following table of Trial I (see Report sheer) for determining the molar volume of co, per and the cent composition of Caco, in a heterogeneous mixture. See Figure 1…

6 of 18 Map do The vapor pressure, P, of a certain liquid was measured at two te

6 of 18 Map do The vapor pressure, P, of a certain liquid was measured at two temperatures, T If you were going to graphically determine the enthalpy of vaponzaton, Hap, for this …

6 of 18 Map do The vapor pressure, P, of a certain liquid was measured at two te

6 of 18 Map do The vapor pressure, P, of a certain liquid was measured at two temperatures, T If you were going to graphically determine the enthalpy of vaponzaton, Hap, for this …

6 of Map University Science Books presented by Sapling Learning General Chemistr

6 of Map University Science Books presented by Sapling Learning General Chemistry 4th Edition At noon on a clear day, sunlight reaches the earth's surface at Madison, Wisconsin, w…

6) (40 points) Ligand binding. Ligand binding to proteins A and B is characteriz

6) (40 points) Ligand binding. Ligand binding to proteins A and B is characterized by the plots shown below H 2.3 1H-1 nH-1 “1 " 0.5 log IL] og [L] (20 points) What are these type…

6) (5 pts) Periodic trends Describe the following trends in the Periodic Table.

6) (5 pts) Periodic trends Describe the following trends in the Periodic Table. Be precise in your answer. E.g.: “across” can mean left to right or right to left. Make sure that i…

6) (5pts) Match the following: Right answers are worth one point. Wrong guesses

6) (5pts) Match the following: Right answers are worth one point. Wrong guesses are -1 point (yes double jeopardy --1 for missing the right answer and -1 for putting in the wrong …

6) A and B react stoichiometrically (i.e. one mol of A reacts with one mol of B)

6) A and B react stoichiometrically (i.e. one mol of A reacts with one mol of B) to form P. If 0.01 M A and 10 M B are mixed, it is found that the log of the concentration of A vs…

6) A solution is prepared by mixing 50.0 mL of 0.100 M Hg2(NO3)2 and 50.0 mL of

6) A solution is prepared by mixing 50.0 mL of 0.100 M Hg2(NO3)2 and 50.0 mL of 0.300 M KBr. Ksp for Hg2Br2 is 1.20x10^-22. Into this solution is placed a Hg(l) electrode and a st…

6) A typical car can hold about 15.5 gallons of gasoline. One gallon of gasoline

6) A typical car can hold about 15.5 gallons of gasoline. One gallon of gasoline is approximately equal to 2600 grams of octane, CsHis, (assuming that gasoline is all octane). Cal…

6) A whale is able to dive to depths of 1000 meters, where the pressure is 100 a

6) A whale is able to dive to depths of 1000 meters, where the pressure is 100 atm and the temperature is 20oF. If the whale takes a breath and fills its lungs with a volume of 40…

6) A young woman named Katy Kool buys a super deluxe sports car that can acceler

6) A young woman named Katy Kool buys a super deluxe sports car that can accelerate at the rate of 10ft/s She decides to test the car by dragging it with another speedster, Stan S…