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As a system increases in volume, it absorbs 52.5 J of energy in the form of heat from the surroundings. The piston is working against a pressure of 0.500 atm. The final volume of the system is 58.0 L. What was the initial volume of the system if the internal energy of the system decreased by 102.5 J?
The nitrite ion (NO2-) is commonly determined by a colormetric procedure using a reaction called the Griess reaction. Im this reaction the sample containing nitrate is reacted with sulfanilimide
The compound 2-methyl-1,4-pentadiene would be classified as what type of diene? Select the least stable diene listed below
macroscopic model describing what happens when solutions of salt (NaCl) and sugar (c12h22011) are prepared to measure their conductivity. Describe what you would observe before and after you added salt and sugar to water
how many mL of 1.00 M hydrochloric acid is needed to prepare a 100.0 mL solution of hydrochloric acid with pH = 5.0 that also contains 0.01667 M MgCl2?
Draw (in increasing energy ordering) 3 different alkenes derived from the dehydration of 1,2-dimethylcyclohexanol
Using the following reaction: OH- + HC2H3O2 ---> H2O + C2H3O2- a 75.0 mL sample of potassium hydroxide, KOH, of unknown concentration is titrated with 42.5 mL of 0.575 M acetic acid.
you have 2.50 ml of 4.00 M sugar solution. You add 217.3 ml of water to this solution. determine the concentration of the sugar solution after the water has been added.
A gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures: , 265 ; , 134 ; and , 159 . The mixture also contains helium gas. What is the partial pressure of the helium gas?
What is the osmotic pressure of human blood at 37°C if human blood is isotonic to 0.16 M NaCl solution? Remember that NaCl almost completely ionizes in water.
The specific 14C activity of a sample of charcoal is determined to be 12.47 dpm g-1of carbon. What is the age of the sample if the initial activity of 14C in this sample was 13.56 dpm g-1of carbon?
Two common substances that are used in the northern U.S. to melt snow and ice are sodium choride (rock salt) and calcium chloride. You have a bag of a substance sold as melting salt
It required 16ml of a sodium hydroxide solution titrated against a standard solution of 0.79g of potassium hydrogen phthalate in water to reach equivalence point. What is the molarity of the sodium hydroxide?
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