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1. Assume that, for a laboratory assignment, you need 15 mL of 2.5M potassium hydroxide (KOH). All you can find, however, is a bottle of concentrated potassium hydroxide with a strength of 16M. Clearly explain, using calculations as necessary, how you would obtain the 15 mL of 2.5M potassium hydroxide that you need. You have a tank of helium with a volume of 10 liters that is currently under 40 atm of pressure. If you open the valve on the tank and release the helium into a room with a volume of 10,000 liters, how many atmospheres of pressure will the helium now be under? Second, what will happen to the "space" between the helium atoms? Clearly explain your answer, including any assumptions you may need to make in order to answer the question.
What are the commonalities/general concepts/theme of metabolism. Please give as many as you can and specifics. For example, "regulation" which includes allosteric, feed forward, feed backward
Devise two pathways by which you could combine other reactions toproduce the same product as the anti hydrogenation of a starting cis alkene.
calculate the heat of enthalpy for the reactionpcl5g rarr pcl3g cl2guse the information below.p4s 6cl2g rarr 4pcl3g
calculate the specific heat capacity of zinc given that a 65.5g sample loses 2008J of heat when cooled from 100.0 degrees celcius to 21.1 degrees celcius.
A solution is prepared by dissolving 0.11 mol of acetic acid and 0.11 mol of ammonium chloride in enough water to make 1.0 L of solution. Find the concentration of ammonia in the solution.
Compute the atomic packing factor for cesium chloride assuming thatthe ions touch along the cube diagonals. Ionic radii ofCs+ and Cl- are 0.170 nm and 0.181 nm,respectively
In a Electrode Potential/Cell Reaction lab you conduct an experiment with a voltmeter connected to two electrodes, two solutions in beakers, and a salt bridge connecting them.
Determine the volume of CO 2 at a temperature twenty two degree Celsius and a pressure of 781 mmHg could be absorbed by 327 grams of Lithium hydroxide LiOH?
Nitromethane will absorb 240nm light. Assuming that each nitromethane molecule absorbs 1 photon, how many molecules would it take to absorb 1 kJ of light at 240nm
A 3.00g lead weight, initially at 10.8°C, is submerged in 7.77g of water at 52.9°C in an insulated container. What is the final temperature of both substances at thermal equilibrium
What mass of Aluminum is produced when 0.5 mole of Al2S3 is completely reduced with excess H2?
How many grams of ethylene are needed to react with 0.120 mol of {\rm{H}}_2 {\rm{O}}{\kern 1pt}. How many grams of ethyl alcohol will result
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