Chemistry concepts and calculations

You are busy carrying out an experiment when a classmate asks for your help. You

You are busy carrying out an experiment when a classmate asks for your help. Your friend is holding up a reaction tube and seems confused about which layer is aqueous and which is…

You are busy carrying out an experiment when a classmate asks for your help. You

You are busy carrying out an experiment when a classmate asks for your help. Your friend is holding up a reaction tube and seems confused about which layer is aqueous and which is…

You are carrying out a reaction in the laboratory. You need to convert 1.00 mole

You are carrying out a reaction in the laboratory. You need to convert 1.00 mole of reactant X into products. This reaction shows first-order kinetics, and the reaction mixture ha…

You are carrying out a reaction in the laboratory. You need to convert 1.00 mole

You are carrying out a reaction in the laboratory. You need to convert 1.00 mole of reactant X into products. This reaction shows first-order kinetics, and the reaction mixture ha…

You are carrying out a reaction in the laboratory. You need toconvert 1.00 mole

You are carrying out a reaction in the laboratory. You need toconvert 1.00 mole of reactant X into products. This reaction shows first-order kinetics, and thereaction mixture has …

You are carrying out a reaction in the laboratory. You need toconvert 1.00 mole

You are carrying out a reaction in the laboratory. You need toconvert 1.00 mole of reactant X into products. This reaction shows first-order kinetics, and thereaction mixture has …

You are carrying out a reaction in the laboratory. You need toconvert 1.00 mole

You are carrying out a reaction in the laboratory. You need toconvert 1.00 mole of reactant X into products. This reaction shows first-order kinetics, and thereaction mixture has …

You are carrying out the enzyme kinetics experiment with purified Alkaline Phosp

You are carrying out the enzyme kinetics experiment with purified Alkaline Phosphatase (AP). You are provided with the following stocks solutions, (a) 0.4M Tris-HCl, pH 8.0 (b) 10…

You are cautioned not to overheat or drop a bottle of the initiator used in this

You are cautioned not to overheat or drop a bottle of the initiator used in this experiment. Why is there this precaution? Polyethylene is a common polymer used in sandwich bags, …

You are charged with analyzing 25 water samples for lead. EPA specifies action i

You are charged with analyzing 25 water samples for lead. EPA specifies action if more than 10% of the samples test at greater than 0.015 mg/L. Additionally, EPA mandates a QA pro…

You are charged with maintaining a legacy Web application. It is a publicly faci

You are charged with maintaining a legacy Web application. It is a publicly facing e-Commerce site that allows customers to search for and order commemorative memorabilia and souv…

You are checking the accuracy of a volumetric flask marked 10.00 mL Measurement

You are checking the accuracy of a volumetric flask marked 10.00 mL Measurement Volume (mL) You measure the volume of water contained in the flask by measuring the mass of the emp…

You are chemical engineer and are researching the possibility of employing theor

You are chemical engineer and are researching the possibility of employing theoretical reaction as part of larger process. You have theorized the following about the reaction: The…

You are comparing transcription of gene X in a normal strain of E. coli cells an

You are comparing transcription of gene X in a normal strain of E. coli cells and a strain of that has been mutated. You observe that in the mutant cells gene X is not transcribed…

You are completing an internship in a hospital medical anaylsis lab. A patient h

You are completing an internship in a hospital medical anaylsis lab. A patient has volunteered to let you calculate the amount of Ca+2 in her blood to help you pass. You take a vi…

You are consulting for a trucking company that does a large amount of business s

You are consulting for a trucking company that does a large amount of business shipping packages between New York and Boston. The volume is high enough that they have to send a nu…

You are convinced that your calcium chloride solution will keep the water liquid

You are convinced that your calcium chloride solution will keep the water liquid at extreme temperatures. However, your boss is also concerned about the interaction of the solutio…

You are convinced that your calcium chloride solution will keep the water liquid

You are convinced that your calcium chloride solution will keep the water liquid at extreme temperatures. However, your boss is also concerned about the interaction of the solutio…

You are designing a drug that inhibits a metalloprotease and is based on the str

You are designing a drug that inhibits a metalloprotease and is based on the structure of its natural peptide substrate. Select all that apply A tetrahedral carbon with a single a…

You are designing a reactor that uses chlorine in a PFR or CMFR to destroy patho

You are designing a reactor that uses chlorine in a PFR or CMFR to destroy pathogens in water. A minimum contact time of 30 min is required to reduce the pathogen concentration fr…

You are designing a ski jump ramp for the next Winter Olympics. You need to calc

You are designing a ski jump ramp for the next Winter Olympics. You need to calculate the vertical height h from the starting gate to the bottom of the ramp. The skiers push off h…

You are designing a system to manage the water transport in the fuel cell. A str

You are designing a system to manage the water transport in the fuel cell. A stream of saturated air with a flow rate of 2.0 lit/min (humidified at 80 oC) is mixed with another st…

You are designing an adder, built from three full adders such that the carry out

You are designing an adder, built from three full adders such that the carry out of the first adder is the carry into the second adder, and the carry out of the second adder is th…

You are designing an apparatus to monitor the breathing of a patient. The appara

You are designing an apparatus to monitor the breathing of a patient. The apparatus consists of a stretchable loop of conductive material wrapped in a small band around the patien…

You are designing the section of a roller coaster ride shown in the figure. Prev

You are designing the section of a roller coaster ride shown in the figure. Previous sections of the ride give the train a speed of 13.1 m/s at the top of the incline, which is 35…

You are developing a procedure for determining traces of copper in biological ma

You are developing a procedure for determining traces of copper in biological materials using a wet digestion followed by measurements by atomic absorption spectrophotometry. In o…

You are developing a procedure for determining traces of lead in paint chips usi

You are developing a procedure for determining traces of lead in paint chips using an acid digestion followed by measurement by atomic absorption spectrophotometry. In order to te…

You are developing the formulation for cream-filled cookies in which the cookie

You are developing the formulation for cream-filled cookies in which the cookie has a water activity of 0.31 and moisture content of 1.4% and a cream filling which has a water act…

You are diagnosed with a chronic synovitis of your right knee. The health practi

You are diagnosed with a chronic synovitis of your right knee. The health practitioner gives you 3 choices for treatment: Naprosyn 250 mg twice daily, Celebrex 200 mg twice daily,…

You are doing a measurement to determine the conductance of an artificial membra

You are doing a measurement to determine the conductance of an artificial membrane. The membrane is selectively permeable to Na+. The temperature is 15 degrees C The external conc…

You are doing a physics experiment on the photoelectric effect. You shine a gree

You are doing a physics experiment on the photoelectric effect. You shine a green laser (wavelength = 632 nm) at a sample of metal, but you discover that no electrons are ejected.…

You are drilling the Marcellus shale and need to provide water with a pH = 4. Yo

You are drilling the Marcellus shale and need to provide water with a pH = 4. You have two acids you can use. One is a concentration solution (3 moles/L) of HCl (a strong acid). T…

You are driving a car foward around a circular track at a constant speed as show

You are driving a car foward around a circular track at a constant speed as shown above. 1) The net force acting on your car a)Points radially inward, toward the center of the tra…

You are driving along the highway at 30 m/s through still air at 25 Celsius chas

You are driving along the highway at 30 m/s through still air at 25 Celsius chasing an unidentified flying object traveling away from you with a ground speed of 100 m/s. The alien…

You are employed at a chemical company and have recently been transferred from a

You are employed at a chemical company and have recently been transferred from a plant that manufactures synthetic dyes to a new facility that makes specialty additives for the po…

You are employed by a medium sized New York consulting engineering firm. You hav

You are employed by a medium sized New York consulting engineering firm. You have a degree in software engineering, and up until now, you have performed services almost exclusivel…

You are employed by the State Department of Environmental Protection in risk com

You are employed by the State Department of Environmental Protection in risk communication. You are scheduled to attend a town hall meeting in a local community where the topic of…

You are employed for a consulting company as a consultant working for a project

You are employed for a consulting company as a consultant working for a project related with the biodegration of organic waste after graduating KU. Microbial process is dominant b…

You are encouraged to form study groups for these evaluations but keep in mind t

You are encouraged to form study groups for these evaluations but keep in mind that your recorded answer must beaenic and contain only your thoughts. To this end all sreup members…

You are examining the kinetics of the following reaction: 2 N 2 O 5 (g) --> 4 NO

You are examining the kinetics of the following reaction: 2 N2O5 (g) --> 4 NO2 (g) + O2 (g) From this reaction, which of the following are true statements about the rate of rea…

You are experimenting with an ethanol and water mixture with a mole fraction of

You are experimenting with an ethanol and water mixture with a mole fraction of ethanol equal to 0.61. See graph.t AHL (k J/mol) A Hwa versus Xethanol 42.5 42.0 41.5 41.0 40.5 y -…

You are experimenting with an ethanol and water mixture with a mole fraction of

You are experimenting with an ethanol and water mixture with a mole fraction of ethanol equal to 0.39. See graph. Based on the equation above, what is the value of the correct ?Hv…

You are faced with separating two different proteins with identical mass. Protei

You are faced with separating two different proteins with identical mass. Protein A is a rod-like molecule with a great deal of secondary srtucture and protein B is a globular pro…

You are fortunate to land a research position with Dr. Xavier Wray. Your first d

You are fortunate to land a research position with Dr. Xavier Wray. Your first day in the lab the good doctor asks you to make a liter of 0.1 M citrate buffer pH 3.5 that you will…

You are fortunate to land a research position with Dr. Xavier Wray. Your first d

You are fortunate to land a research position with Dr. Xavier Wray. Your first day in the lab the good doctor asks you to make a liter of 0.1 M citrate buffer pH 3.5 that you will…

You are getting ready to cook your turkey but see that the direction for cooling

You are getting ready to cook your turkey but see that the direction for cooling the turkey has rubbed off. Your guest will be arriving at 3pm on Thursday and you do not want to g…

You are given 2 colorless solutions., one containing NaCl and one C_12H_22O_11).

You are given 2 colorless solutions., one containing NaCl and one C_12H_22O_11). Suggest a chemical test and a physical test to determine which. Nitrous oxide (N_2O) can be produc…

You are given 250.0 mL of a solution of potassium hydroxide that has been determ

You are given 250.0 mL of a solution of potassium hydroxide that has been determined to be 0.015 molarity. This sample is placed in a 2.000 L volumetric flask and an additional 8.…

You are given 5 solutions: Solution A is made by dissolving 3.0g of CuSO 4 , in

You are given 5 solutions: Solution A is made by dissolving 3.0g of CuSO4, in 100 mL of water. Solution B is made by dissolving 6.0g of CuSO4, in 200mL of water. Solution C is mad…

You are given 60 mL of .50 M acetic acid/acetate buffer to test. The starting co

You are given 60 mL of .50 M acetic acid/acetate buffer to test. The starting composition of the two major species are: CH3COOH: 0.304 M--------CH3COO: 0.196 M a. use the henderso…