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Problem- What will happen to a system composed of 75% heptane 25% hexane if the temperature is raised from 20C to 110C without removing (distilling) anything in the system? Use phase diagram to help explain. External pressure is constant at 1 atm. I understand what happens if the vapor (comprised of more hexane than heptane) is distilled off (removed), but what happens if nothing is removed and the temperature is continuously raised?
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draw the molecule 1-(4-methoxyphenyl)-2-methylpropan-1-ol. number the carbons on the molecule and identify all the functional groups characterized by the molecules name.
Which of the following buffer systems would be the best choice to create a buffer with the pH= 9.00? For the best system , calculate the ratio of the masses of the buffer components required to make the buffer.
A soluble iodide was dissolved in water. Then an excess of silver(I) nitrate, AgNO3 was added to completely precipitate out all the iodide ion as silver(I) iodide, AgI. if 1.545 grams of soluble iodide gave 2.185g of silver(I) iodide, then
What is the theoretical yield in grams? What is the theoretical yield in moles? (I already have the calculated amounts of reactants) Just need theoretical yields.
The molecular formula of glycine (an amino acid) is NH2CH2COOH, the molecular mass is 75.07grams/mole. If 10 glycines are joined together by a dehydration reaction to make a polypeptide, what would the molecular mass of the polypeptide equal.
define what is the additional concentration of nitrogen nine expressed in milligrams of nitrogen per liter in the river water due to the farmer's fertilizer
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Consider a steel tank whose volume is 65.0 L and which contains O2 gas at a pressure of 18100 kPa at 22°C. What mass of O2 does the tank contain?
you have 100 mL graduated cylinder containing 50 mL of water. you drop a 154 g piece of brass (d= 8.56 g/cm3) into the water. how high does the water rise in the graduated cylinder?
A reaction has activation energy of 125 kJ/mol. At 25 degrees Celsius the rate is 5.0E5 M/s. If the temperature is decreased to 0 degrees with all other things being the same then what is the rate of reaction
While performing experiment, decides to add all the reagents into one beaker as an alternative of two separate beakers. Subsequent to adding everything together and waiting a significant amount of time, Observed no reaction occur. Define what was ..
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