Chemistry concepts and calculations

4. (15 pts) Density. Two students deternine the density of the same salt water s

4. (15 pts) Density. Two students deternine the density of the same salt water solution and obtain the following results. See Figure 1 on Page 1 a. (5 pts) Student #1 procedure an…

4. (16 points) Guess a plausible solution for the complexity of the recursive al

4. (16 points) Guess a plausible solution for the complexity of the recursive algorithm characterized by the recurrence relations un) T(n/2)+T(n/4)+T(n/8)+T(n/8)+n; T(1) c using t…

4. (2 points) One method of removing phosphate from wastewater effluent is to pr

4. (2 points) One method of removing phosphate from wastewater effluent is to precipitate it W1 with aluminium sulfate (alum). A possible stoichiometry (but not exact because alum…

4. (2 points) One method of removing phosphate from wastewater effluent is to pr

4. (2 points) One method of removing phosphate from wastewater effluent is to precipitate it W1 with aluminium sulfate (alum). A possible stoichiometry (but not exact because alum…

4. (20 PTS) AS DESCRIBED IN CLASS, CURIOSITY, THE MARS ROBOTIC LANDER DISCOVERED

4. (20 PTS) AS DESCRIBED IN CLASS, CURIOSITY, THE MARS ROBOTIC LANDER DISCOVERED THE PRESENCE OR SMALL ROUND ROCKS (PEBBLES) ON MARS. THIS EXCITING FIND IS NOW BELIEVED TO BE EVID…

4. (20 PTS) AS DESCRIBED IN CLASS, CURIOSITY, THE MARS ROBOTIC LANDER DISCOVERED

4. (20 PTS) AS DESCRIBED IN CLASS, CURIOSITY, THE MARS ROBOTIC LANDER DISCOVERED THE PRESENCE OR SMALL ROUND ROCKS (PEBBLES) ON MARS. THIS EXCITING FIND IS NOW BELIEVED TO BE EVID…

4. (20 points) A 10.0 g piece of ice at 0 degree C is added to 20.0 g of water a

4. (20 points) A 10.0 g piece of ice at 0 degree C is added to 20.0 g of water at 50.0 degree C in a Dewar Flask. For water deltafus h^phi = 5980. J/mol. The heat capacity of liqu…

4. (20 points) Below is a pe-pH diagram for chromium in freshwater. a. If you we

4. (20 points) Below is a pe-pH diagram for chromium in freshwater. a. If you were studying an alpine lake at pH-7, what form of dissolved Cr would you predict to be dominant in s…

4. (20 points) F product. What type of reaction is produced (combustion, single

4. (20 points) F product. What type of reaction is produced (combustion, single replacement etc.)? What is the molarity of 30.0 L of a NiCl2 solution that reacts completely with 1…

4. (20 points) hEGF Bioproduction Assume that you have been assigmed to a team t

4. (20 points) hEGF Bioproduction Assume that you have been assigmed to a team to produce human epidermal growth factor (hEGF). A small peptide, hEGF, speeds wound healing and may…

4. (20 pts total, 5 pts. each) Ammonium dichromate INH) Cr,01] is a bright orang

4. (20 pts total, 5 pts. each) Ammonium dichromate INH) Cr,01] is a bright orange inorganic salt. a. At what wavenumbers would a sample of ammonium dichromate absorb in the IR reg…

4. (25 points) It can be shown that for a van der Waals gas, the Joule-Thompson

4. (25 points) It can be shown that for a van der Waals gas, the Joule-Thompson coefficient is given by: Mujt = (2a/RT - b)/Cp For neon gas, the van der Waals constants are: a = 0…

4. (25 points) Questions (circle your answer when necessary) When extruding a vi

4. (25 points) Questions (circle your answer when necessary) When extruding a viscoelastic polymer of a square section through a die, the die opening must be a square section of t…

4. (25 points) Questions (circle your answer when necessary) When extruding a vi

4. (25 points) Questions (circle your answer when necessary) When extruding a viscoelastic polymer of a square section through a die, the die opening must be a square section of t…

4. (25 pts) Write a complete program that reads the scores from the file midterm

4. (25 pts) Write a complete program that reads the scores from the file midterm.txt, computes and prints the largest and second largest number in the file. You will need variable…

4. (30 pts, 2 pts each) Multiple-choice questions from chapter 13. Place the let

4. (30 pts, 2 pts each) Multiple-choice questions from chapter 13. Place the letter representing the correct response in the blank provided. (WHEN YOU ANSWER PLEASE COPY PASTE MY …

4. (30 pts, 2 pts each) Multiple-choice questions from chapter 13. Place the let

4. (30 pts, 2 pts each) Multiple-choice questions from chapter 13. Place the letter representing the correct response in the blank provided. (WHEN YOU ANSWER PLEASE COPY PASTE MY …

4. (30 pts, 2 pts each) Multiple-choice questions from chapter 13. Place the let

4. (30 pts, 2 pts each) Multiple-choice questions from chapter 13. Place the letter representing the correct response in the blank provided. (WHEN YOU ANSWER PLEASE COPY PASTE MY …

4. (4 pts) In this lab, you will be performing a conductometric titration. In th

4. (4 pts) In this lab, you will be performing a conductometric titration. In this titration, the conductivity of a solution will be continuously monitored as a second reactant is…

4. (40 points) Hydrogen gas to power fuel cells is sometimes produced from metha

4. (40 points) Hydrogen gas to power fuel cells is sometimes produced from methane in a synthesis gas reactor. In the reformer reactor considered here, a methanelcarbon dioxide st…

4. (40 pts.) This Question includes [e1, e2, e3] A natural gas has the following

4. (40 pts.) This Question includes [e1, e2, e3] A natural gas has the following molar analysis: co2 0.5%, CH4 92% C2HA 3% N2 4.5%. The gas is burned with dry air, using Orsat ana…

4. (45 ptsThermodynamics. Using the appropriate thermodynamic data (below), calc

4. (45 ptsThermodynamics. Using the appropriate thermodynamic data (below), calculate the required quantities. (4a) Forthereaction: 2NO2(g)- H2O2(I) 2HNO3(aq),AS Calculate the abs…

4. (4pts) Decid e whether the following events are disjoint andomly selecting so

4. (4pts) Decid e whether the following events are disjoint andomly selecting someone who owns a cat 2. Randomly selecting someone who owns a dog Are the events disjoint? a) Yes, …

4. (5 pts) We would like to add the “srl” (shiftright logical) instruction to th

4. (5 pts) We would like to add the “srl” (shiftright logical) instruction to the single cycle datapath discussedin class. You will need to feed the shamt field to the ALU sothat …

4. (8 pts) You are working in a different experiment with a solution that contai

4. (8 pts) You are working in a different experiment with a solution that contains Na,SO, and NaOH. Describe how you would separate the two anions (sulfate and hydroxide) and conf…

4. (9 points) Each arrow to the right shows the initial and final states in a tr

4. (9 points) Each arrow to the right shows the initial and final states in a transition. A is the longest arrow and E is the shortest 2.5-,12 2.0 a) Do the transition arrows repr…

4. (L.Roint each &prints; . Explain each of the following observations for a Pt

4. (L.Roint each &prints; . Explain each of the following observations for a Pt catalyzed washcoated monolith used in a pollution abatement application. a. The inlet temperatu…

4. (a) Calculate the Eo of a battery composed of reactions (ii) and (iii) : (b)

4. (a) Calculate the Eo of a battery composed of reactions (ii) and (iii) : (b) Calculate Go for this battery (reactions (ii) and (iii)) : (c) (0.4 pt) Calculate Keq for the batte…

4. (a) Describe Euler?s Method for finding numerical solutions to equations of t

4. (a) Describe Euler?s Method for finding numerical solutions to equations of the kind y? = f(t, y) where y? is the slope of the function f(y, t) at a particular point and is a f…

4. (a) For a pure substance with a normal freezing curve, is the liquid or solid

4.   (a) For a pure substance with a normal freezing curve, is the liquid or solid state more stable for a sufficient isothermal increase in pressure? Which phase would be favored…

4. (a) Medium carbon content steels (i.e. 0.4 wt.%C) and 2000 series Aluminium A

4. (a) Medium carbon content steels (i.e. 0.4 wt.%C) and 2000 series Aluminium Alloys (i.e. Al- 4 wt.% Cu) are solution treated, quenched and aged to produce desired combinations …

4. (a) Medium carbon content steels (ie, 0.4 wt%C) and 2000 series Aluminium All

4. (a) Medium carbon content steels (ie, 0.4 wt%C) and 2000 series Aluminium Alloys (ie, Al-4 wt.% Cu) are solution treated, quenched and aged to produce desired combinations of m…

4. (a) Normal air at earth\'s surface contains 0.350% CO2 by volume. What is the

4. (a) Normal air at earth's surface contains 0.350% CO2 by volume. What is the partial pressure of CO2 in atm? b) The Henry's Law constant for CO2 dissolved in blood is 23.3 mM/a…

4. - Determine the relation [NHA\'1/[NH OH] in orfer to obtain a pH o f 7.8 for

4. - Determine the relation [NHA'1/[NH OH] in orfer to obtain a pH o f 7.8 for the buffer of pKa 9.25 Previously calculate the pOH S.- The following curve corresponds to the titra…

4. -110 points SerCP10 23.P014 My N A concave mirror has a focal length of 32.4

4. -110 points SerCP10 23.P014 My N A concave mirror has a focal length of 32.4 cm (a) What is its radius of curvature? cm (b) Locate the image when the object distance is 100 cm.…

4. 1.500 g of benzoic acid, C0a, was burned in a bomb calorimeter with excess ox

4. 1.500 g of benzoic acid, C0a, was burned in a bomb calorimeter with excess oxygen. The calorimeter has a heat capacity of 893 J°C, and the calorimeter contains 775 grams of wai…

4. 100.0 mL of 0.0500 M NH3 is titrated with 0.100 M HCl. (30 pts) a. Calculate

4. 100.0 mL of 0.0500 M NH3 is titrated with 0.100 M HCl. (30 pts) a. Calculate the volume of HCl necessary to neutralize the NH3. b. Calculate the pH at the equivalence point. c.…

4. 12 points The figure below shows the effect of heating at a given temperature

4. 12 points The figure below shows the effect of heating at a given temperature for 10 minutes on the relative enzyme activity of lactase. Refer to this figure to answer the foll…

4. 15 pts] Identify whether the following sources of error are random or systema

4. 15 pts] Identify whether the following sources of error are random or systematic Explain your answer (a) A small earthquake occurs while you are measuring the mass of an object…

4. 15 pts] Identify whether the following sources of error are random or systema

4. 15 pts] Identify whether the following sources of error are random or systematic Explain your answer (a) A small earthquake occurs while you are measuring the mass of an object…

4. 2/2 points 3/3 submissions Notes Question: VSOrgChem5 11.kas.11. Question par

4.2/2 points3/3 submissionsNotesQuestion: VSOrgChem5 11.kas.11. Question part Points 1 2 3 0.66 0.66 0.68 Total 2/2 (a) Choose the most stable alkene. 1-pentene, 3-methyl-1-butene…

4. 3.00 moles of La and 7.00 moles of Cu are mixed at 1 bar and 1500 °C. The fol

4. 3.00 moles of La and 7.00 moles of Cu are mixed at 1 bar and 1500 °C. The following phase diagram applies. The mixture is cooled at a constant rate of heat loss. At what temper…

4. 3/5 points | Previous Answers MI4 9.1.015 My Notes Ask Your Teacher By calcul

4. 3/5 points | Previous Answers MI4 9.1.015 My Notes Ask Your Teacher By calculating numerical quantities for a multiparticle system, one can get a concrete sense of the meaning …

4. 40.0 mL oro This is the equivalence point. Calculate the 0. 100 M barbituric

4. 40.0 mL oro This is the equivalence point. Calculate the 0. 100 M barbituric acid (-9.8 10-) with 40.0 mlL of 0.100 MKOH. Hint 9.3 G e9 40.om OHYo 4.40 5. A sample of 0.3374 g …

4. 5 points) 25.00 mL of a solution of 0.25 M HA is titrated with 0.25 M NaOH di

4. 5 points) 25.00 mL of a solution of 0.25 M HA is titrated with 0.25 M NaOH dispensed from a buret. The acid HA is a weak acid with pK,-4.92. Which one of the following indicato…

4. 7 points) Computational problem solving: Understanding an algorithm and its s

4. 7 points) Computational problem solving: Understanding an algorithm and its strategy by simulating it on a specific input: Understand the following algorithm. Simulate it menta…

4. A 120.0 g piece of metal is heated to 410oC and then dropped into an insulate

4. A 120.0 g piece of metal is heated to 410oC and then dropped into an insulated container filled with 50.0 g of ice and 100.0g of water. a) After the system reaches equilibrium,…

4. A 2.00 L balloon of gas at s0.0°C is cooled to 0,0°C. What is the new volume

4. A 2.00 L balloon of gas at s0.0°C is cooled to 0,0°C. What is the new volume (liters) of the balloon? Ans: 1.69 Assume P & n are constant. 3 K 5. If the volume of a gas at …

4. A 20.25 ml unknown HaSO, solution is titrated with 34.60 ml ofa 0.10M NaOH to

4. A 20.25 ml unknown HaSO, solution is titrated with 34.60 ml ofa 0.10M NaOH to the equivalence point. Find the concentration of the HaSO4 solution. (6 pt) 5. Name or write the f…

4. A 25.00 mL sample of HCl is titrated with the 0.315 M NaOH solution from the

4. A 25.00 mL sample of HCl is titrated with the 0.315 M NaOH solution from the previous question. 22.65 mL of the NaOH solution was required to titrate the acid. Calculate the mo…