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Write the equation showing the S-trans to S-cis equilibrium of the two conformations for a. (E)-1,3-pentadiene b. (Z)-1,3-pentadiene and which equilibrium will favor the s-tans conformation more strongly?
Assume the caffeine solution is 15 mg of caffeine per mL. A student used 5 mL of caffeine solution in both part A and part B. Crude yields was 68 mg from the dichloromethane extract and 47mg from the MTBE extract.
Oxygen makes up 46.7 % by mass of the Earth's crust. How many grams of oxygen are present if a sample of the Earth's crust has a mass of 335 g
An empty 2.0 L soda bottle is tightly capped at 25 degrees C and 732 mmHg. If the bottle is heated to 100 degrees C what is the pressure in the bottle
A student measures out 100.0 ml of 1.00 M HCl and places it in a styrofoam cup. The temperature of the HCl is 22.30C. She then addes 1.002 g of MgO to the cup.
When 24 mL of a 175 mL stock solution containing 1.6 M BaF2 is diluted to 70 mL, what is the concentration of Ba2+ in the new solution?
Describe Alkene Products, When tert-pentyl bromide is treated with 80% ethanol, the amounts of alkene products indicated below are detected on analysis.
A solution of h2so4 with a molal concentration of 6.80 has a density of 1.318 g/ml. What is the molar concentration
Determine KM for glucose oxidase. KM = M. B. Determine effect on the maximal rate if the concentration of adenine is 0.001 M. Vmax,I = mmol/min.
Draw Lewis dot structure and predict molecular geometry - Show the Lewis structures of the following molecules and then predict their geometry.
Assuming that the addition of the acid does not change the volume of the solution what is the pH of the acid/water mixture in the flask?
Use metric conversion factors to solve the following problem. A park has an area of 150000 m^2. What is the area in km^2?
the enzyme acetylcholinesterase,which has a turnover rate of 25,000 s-1. Calculate how long it takes the enzyme to cleave one acetylcholine molecule.
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