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Describe DDT and explain the advantages and disadvantages of DDT.
When food packaging lists the calories contained in the contents; numbers supplied are actually "Calories", each of which is equivalent to standard calories.
In order to drive an endergonic reaction by coupling it with a second reaction , the second Law of Thermodynamics requires that the second reaction energy than/as the first requires.
2- phosphoglycerate (2PG) has significantly more free energy than does 3- phosphoglycerate (3PG). A Scientist places equal amounts of the two compounds in solution with an enzyme that allows their i
Complete the following table as perform the tests. Use the code P,NP,C and NC as indicated in the table in reperting your results. Explain your results.
Assume a balloon is filled so that its volume is 2.00 L when the pressure is 84.7 psi and the temperature is 21.7oC. What volume would it occupy if it rises to an elevation where pressure is 17.8 ps
A student is preparing a sugar water solution to make rock candy. While the student continues to add sugar to the solution no additional sugar dissolves. Which type of solution does the student have
Write the balanced equation for this reaction; compute how many grams of nitrogen gas form when 2.391 x 103g of N2H2 and 1.369 x 103g N2O4 are mixed.
What weight of hydrogen is created when 2.75 grams of sodium is dropped into 100.00 mL of water? Density of water is 0.98 g/mL.
Copper (II) oxide can be reduced to copper metal by heating in a stream of hydrogen gas. Write down the balanced equation for this reaction.
A bottle of 180 proof alcohol is 90% ethanol and 10% water. What is the solvent in this solution.
Zirconium oxalate K2Zr(C2O4)3(H2C2O4)•H2O was synthesized by mixing 7.369g of ZrOCl2•8H2O with 9.325g of H2C2O4•2H2O and an excess of KOH. After 2 months, 4.962g of crystaline zirconi
Calculate the theoretical yield, in grams, of P4O10 produced from 67.820g P4 and 60.910g O2.
If in the presence of excess nitric acid, 9.902 x 10^12 molecules of nitrogen monoxide are released, how many grams of copper metal did you start with.
Determine the limiting, excess reagent & percent yield of the reaction.
At constant pressure temperature of a 10.25 liter sample of Chlorine gas at 456.3K is decreased 15 degrees. What is the new volume of gas sample.
A 73.751g piece of gold has a temperature of 23.01oC. What would the new temperature of the gold be is 650cal of heat are added? The specific heat of gold is 0.0310cal/g oC.
Write the total ionic and net ionic equations for following reactions.
Using the below, determine how much heat is required to take at 103.328g cube of ice at -16.54oC to all steam at 115.24oC.
We use fossil fuels (oil, gas, coal) for many things: power for transportation, electricity production, home and industrial heating. Frequently overlooked is the fact that these "fuels" also provide
What is the reason of extracting the organic layer with water in the first extraction step.
On the IR spectrum of your product, label all the major absorption bands and show the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
What would the effect on yield be of allowing the crushed Dry Ice to be exposed to the atmosphere for long periods of time before being used? Describe your answer.
Mercury in a thermometer has a volume of 3.00mL. What is the maximum temperature a mercury thermometer can measure.
What mass of potassium benzoate, KC7H5O2, is necessary to prepare one liter of a 0.125 molar solution of potassium benzoate.