Chemistry concepts and calculations

6. (12 points) A fluorescence assay is used to detect green fluorescent protein

6. (12 points) A fluorescence assay is used to detect green fluorescent protein (GFP) in water by exciting samples at 395 nm and measuring the intensity of emission at 509 nm (I).…

6. (13 points total) Consider the following thermal decomposition reaction: (NH4

6. (13 points total) Consider the following thermal decomposition reaction: (NH4)2Cr2O7 (s) ) Cr203(s) + N2(g) + 4H20(g) a. (9 points) A student places some solid ammonium dichrom…

6. (15 points) The following reaction is endothermic: [CoCl2C6H2O] + 6 SOCl2 6 C

6. (15 points) The following reaction is endothermic: [CoCl2C6H2O] + 6 SOCl2    6    CoCl2 + 12 HCl + 6 SO2 H  > 0 i) (6 pts) The reaction is also spontaneous, at some temperat…

6. (15) The enzyme invertase catalyzes the hydrolysis of sucrose. The initial re

6. (15) The enzyme invertase catalyzes the hydrolysis of sucrose. The initial reaction rates vo as a function of initial sucrose substrate (S) concentrations are given below: init…

6. (17 points) In this question you are going to calculate the data that could b

6. (17 points) In this question you are going to calculate the data that could be used to construct a titration curve (pH versus volume of titrant added) for the titration of an a…

6. (20 points) Consider a galvanic cell consisting of the following two redox co

6. (20 points) Consider a galvanic cell consisting of the following two redox couples: Ag+ (aq, 0.010 M) + e- Ag (s) CP"(ag, 0.010 M) + 3e Cr (s) E°= +0.80 V FO=-0.74 V a. Write t…

6. (20) The compound (S) 3-chloro-1,2,propanediol is shown below. A sophomore ch

6. (20) The compound (S) 3-chloro-1,2,propanediol is shown below. A sophomore chemistry major looked at this structure and predicted a 1H NMR spectrum to show 2 doublets and a qui…

6. (22 pts) A galvanic cell is set up to measure the acid dissociation constant

6. (22 pts) A galvanic cell is set up to measure the acid dissociation constant (K) for the weak acid HA. The cathode consists of a (Ag./Ag) half-cell ('+0.800 v) in which I Ag.|e…

6. (31 points) Rifampicin is an antibiotic used to treat a variety of bacterial

6. (31 points) Rifampicin is an antibiotic used to treat a variety of bacterial infections. Answer the questions that follow regarding Rifampicin. HO O HO OH OH OH NH OH Rifampici…

6. (5 points) NaCT is added slowly to a solution that is 0.010 M each in aqueous

6. (5 points) NaCT is added slowly to a solution that is 0.010 M each in aqueous Cu'.Ag.and Au The Kip's for Cuci.AgC,and AuCl are 19x 10.18 x 01and x T, respectively. larger . ks…

6. (5 pts) Which of the following is not a characteristic of a carbonyl group? A

6. (5 pts) Which of the following is not a characteristic of a carbonyl group? A. sp hybridized carbon atom B. planar geometry about the carbonyl bond C. carbonyl carbon atom is e…

6. (5) When solutions of sodium thiosulfate, Na S Os, are standardized using pot

6. (5) When solutions of sodium thiosulfate, Na S Os, are standardized using potassium iodate, KIOs, reacted with HCI and excess KI, iodine is produced by the reaction: IO (aq) +5…

6. (5)Which of thefollowing equations represents the proper net ionic equation f

6. (5)Which of thefollowing equations represents the proper net ionic equation forthe complete neutralization reaction between the weak acid HF (aq)and the strong base Ba(OH)2 (aq…

6. (6 pts) Students A and B receive plagioclase samples and are asked to determi

6. (6 pts) Students A and B receive plagioclase samples and are asked to determine the chemical composition. Student A polishes the as-received sample to obtain a planar surface o…

6. (6 pts) Students A and B receive plagioclase samples and are asked to determi

6. (6 pts) Students A and B receive plagioclase samples and are asked to determine the chemical composition. Student A polishes the as-received sample to obtain a planar surface o…

6. (6 pts.) From the solubility experiment you will have concluded that biphenyl

6. (6 pts.) From the solubility experiment you will have concluded that biphenyl is soluble in hexane. On the following solute/solvent representation, state ALL of the IMF that ne…

6. (8 points) The planet Araganose (which is made mostly of the mineral aragonit

6. (8 points) The planet Araganose (which is made mostly of the mineral aragonite, or Caco,) has an atmosphere containing methane and carbon dioxide, each at a pressure of 0.10 ba…

6. (TCO 1) When a Java method is passed an array as a parameter, how does the me

6. (TCO 1) When a Java method is passed an array as a parameter, how does the method know how many elements the array has? (Points : 6)        The method can use the length member…

6. -18 points SerCP11 7 P012 My Notes Ask Your Teacher A 40.0-cm diameter disk r

6. -18 points SerCP11 7 P012 My Notes Ask Your Teacher A 40.0-cm diameter disk rotates with a constant angular acceleration of 2.80 rad/s2. It starts from rest at t 0, and a line …

6. 0-1 points Gvsuchernt 16v2 14 j3.P001 Weak Base Titration During a titration

6. 0-1 points Gvsuchernt 16v2 14 j3.P001 Weak Base Titration During a titration of a weak base with a strong acid, you are slowing converting molecules of the weak base into ma ac…

6. 0.5/1.5 points Previous Answers OSColPhys1 19.P048.WA. Suppose you want a cap

6. 0.5/1.5 points Previous Answers OSColPhys1 19.P048.WA. Suppose you want a capacitor bank with a total capacitance of at least 1.029 F and you possess numerous 4.06 mF capacitor…

6. 0/5 points | Previous Answers BLB12 19.P.054 My Notes Ask Your Teac Calculate

6. 0/5 points | Previous Answers BLB12 19.P.054 My Notes Ask Your Teac Calculate ASo values for the following reactions by using tabulated So values from this table of the thermod…

6. 10 points. Describe a micelle and explain how micelle formation brings oil an

6. 10 points. Describe a micelle and explain how micelle formation brings oil and grease into water solution. o points. Will a carboxylic acid be more soluble in acidic solutions …

6. 100 80 3 60 50 75 100 m/z Relative Abundance 2.0 2.9 m/z Relative Abundance 5

6. 100 80 3 60 50 75 100 m/z Relative Abundance 2.0 2.9 m/z Relative Abundance 5.5 1.3 5.8 m/z 39.0 41.0 45.0 47.0 50.0 51.0 62.0 63.0 64.0 65.0 77.0 89.0 90.0 91.0 92.0 121.0 123…

6. 11.00 g of compound X (solubility 1.0 g/100 ml. at 0 °C) is contaminated with

6. 11.00 g of compound X (solubility 1.0 g/100 ml. at 0 °C) is contaminated with 1.00 g o (solubility 1.1 g/100 mL at o "C) and 1.00 g of compound Z (solubility 1.5 g/100 ml at im…

6. 47.14 points ZumChemP7 4.E.027 My Notes Ask Your Teacher The units of parts p

6. 47.14 points ZumChemP7 4.E.027 My Notes Ask Your Teacher The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In genera…

6. 47.14 points ZumChemP7 4.E.027 My Notes Ask Your Teacher The units of parts p

6. 47.14 points ZumChemP7 4.E.027 My Notes Ask Your Teacher The units of parts per million (ppm) and parts per billion (ppb) are commonly used by environmental chemists. In genera…

6. 7. A 10,000.0-kg object and a 15,000.0-kg object are positioned such that the

6. 7. A 10,000.0-kg object and a 15,000.0-kg object are positioned such that their centers are 2,500.0 m apart. What is the gravitational force between the objects? (G = 6.674 ? 1…

6. A 0.110 mol sample of an ideal gas Occupies 3.50L. What is the volume of 0.25

6. A 0.110 mol sample of an ideal gas Occupies 3.50L. What is the volume of 0.250 moles of this gas at the same temperature and pressure? 7. What is the volume of 0.2500 moles of …

6. A 0.3205 g sample of CaCO, was dissolved in HCl and the resulting solution di

6. A 0.3205 g sample of CaCO, was dissolved in HCl and the resulting solution diluted to 250.0 mL in a volumetric fask A 25.00 mL sample of the solution required 18.75 ml. of an E…

6. A 0.3205 g sample of CaCO, was dissolved in HCl and the resulting solution di

6. A 0.3205 g sample of CaCO, was dissolved in HCl and the resulting solution diluted to 250.0 mL in a volumetric fask A 25.00 mL sample of the solution required 18.75 ml. of an E…

6. A 10.00 g sample consisting of mixture of sodium chloride and potassium sulfa

6. A 10.00 g sample consisting of mixture of sodium chloride and potassium sulfate is dissolved in water. This aqueous mixture then reacts with excess aqueous lead(II) nitrate to …

6. A 49-year-old woman was referred for a lipid evaluation by her dermatologist

6. A 49-year-old woman was referred for a lipid evaluation by her dermatologist after she developed a papular rash over her trunk and arms. The rash consisted of multiple, red, ra…

6. A 49-year-old woman was referred for a lipid evaluation by her dermatologist

6. A 49-year-old woman was referred for a lipid evaluation by her dermatologist after she developed a papular rash over her trunk and arms. The rash consisted of multiple, red, ra…

6. A 5.0 L flask is intially filled with 0.25 mol SO3, 0.50 mol SO2, and 1.0 mol

6. A 5.0 L flask is intially filled with 0.25 mol SO3, 0.50 mol SO2, and 1.0 mol O2, and allowed to reach equilibrium according to the following reaction (Kc = 0.12). Which statem…

6. A 5.0 L flask is intially filled with 0.25 mol SO3, 0.50 mol SO2, and 1.0 mol

6. A 5.0 L flask is intially filled with 0.25 mol SO3, 0.50 mol SO2, and 1.0 mol O2, and allowed to reach equilibrium according to the following reaction (Kc = 0.12). Which statem…

6. A 7.0 × 10-3 M aqueous solution of Ca(OH)2 at 25.0°C has a pH of __________.

6. A 7.0 × 10-3 M aqueous solution of Ca(OH)2 at 25.0°C has a pH of __________. A) 12.15 B) 1.85 C) 1.4 × 10-2 D) 7.1 × 10-13 E) 11.85 7. According to Lewis theory, a Lewis base i…

6. A CHM 126 student followed the procedure t\'s data table below or benzenedepr

6. A CHM 126 student followed the procedure t's data table below or benzenedepression. Fill in the blanks in the studehttical report correct number of figures Molar mass by freezi…

6. A Solution sprerred by diss-winn ut is the empiric-1 (Simplest) t rmula. C3H8

6. A Solution sprerred by diss-winn ut is the empiric-1 (Simplest) t rmula. C3H8 + 502- 3CO2 + 5H20 t volume of oxygen is needed to react with 3 L of C3HB? gas sample occupies a v…

6. A Solution sprerred by diss-winn ut is the empiric-1 (Simplest) t rmula. C3H8

6. A Solution sprerred by diss-winn ut is the empiric-1 (Simplest) t rmula. C3H8 + 502- 3CO2 + 5H20 t volume of oxygen is needed to react with 3 L of C3HB? gas sample occupies a v…

6. A balloon containing o 100 moles ofHe gas has a volume of 2.45 liters at 25 a

6. A balloon containing o 100 moles ofHe gas has a volume of 2.45 liters at 25 and its f 7600 torr. balloon rose into the and its changed to 15 C pressure decreased to 720 torr, w…

6. A batch reactor is designed to remove a contaminant by adsorption onto a sorb

6. A batch reactor is designed to remove a contaminant by adsorption onto a sorbent that can then be removed. The measured aqueous concentrations in the water after addition of th…

6. A bullet is shot into a block of plastic. The bullet penetrates the block 0.6

6. A bullet is shot into a block of plastic. The bullet penetrates the block 0.65 m. The mass of the bullet is 12 g. It is traveling with a speed of 505 m/s before it hits the blo…

6. A car is driving around a circular track. The radius of the track is 700.0 me

6. A car is driving around a circular track. The radius of the track is 700.0 meters. The car starts from rest at the eastern-most part of the track and starts speeding up in the …

6. A certain amount of solvent A\' will dissolve 32 grams of acetaminophen (Tyle

6. A certain amount of solvent A' will dissolve 32 grams of acetaminophen (Tylenol) at room temperature and 35 grams at 100°C. The same amount of 'solvent B' will dissolve 1.2 gra…

6. A certain calorimeter is made of 100 g of copper (c-390 J/kg·°C) and contains

6. A certain calorimeter is made of 100 g of copper (c-390 J/kg·°C) and contains 0.180 kg of water (c = 4186 J/kg·°C) and 20.0 g of ice (L,-3.33 × 105 J/kg) in thermal equilibrium…

6. A chemist analyzes the sulfate salt of an unknown alkaline earth metal. The c

6. A chemist analyzes the sulfate salt of an unknown alkaline earth metal. The chemist adds 1.273 g of th salt to excess barium chloride solution. After filtering and drying the m…

6. A chemist analyzes the sulfate salt of an unknown alkaline earth metal. The c

6. A chemist analyzes the sulfate salt of an unknown alkaline earth metal. The chemist adds 1.273 g of th salt to excess barium chloride solution. After filtering and drying the m…

6. A claim has been made again a commercial rust treatment product containing ch

6. A claim has been made again a commercial rust treatment product containing chloro-acetic (ClAcOH). According to the claim, ClAcOH was replaced with acetic acid (AcOH) which is …

6. A flat-blade turbine agitator with disk having six blade is installed in a ta

6. A flat-blade turbine agitator with disk having six blade is installed in a tank. The tank diameter is 1.83 m, the turbine diameter is 0.61 m and the width is 0.122 mm. The tanl…