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Imagine that it is a very hot summer day outside. To help quench your thirst while outdoors, you decide to make yourself a big batch of ice tea. When you add large quantity of sugar to the tea to sweeten it, you notice that where the sugar lands on the ice cubes, the ice melts. You also determine that the temperature of the tea drops after adding the sugar. Explain in detail why the sugar would cause the ice cubes to melt while it also causes the temperature to drop.
The temp of the water and that of the gas are identical at 26°C. How many moles of Helium have been evolved?
A 0.75 L bottle is cleaned, dried, and closed in a room where the air is 22 degree Celsius and 44% relative humidity (that is, the water vapor in the air is 0.44 of the equilibrium vapor pressure at 22 degree Celsius). The bottle is brought outsid..
A system at equilibrium contains I2 (g) at a pressure of 0.41 atm and I (g) at a pressure of 0.32 atm. The system is then compressed to half its volume. Find the pressure of I2 (g) when the system returns to equilibrium.
Running a TLC of Unknown Compound X using eluent hexane:ethyl acetate 4:1. The Rf of the unknown is too close to the baseline. What should I do?
What is the final volume of the balloon? Assume ideal-gas behavior. A very flexible balloon with a volume of 1.2 L at 1.0 atm at 300 K is allowed to rise to the stratosphere
If 18.4 mL of 0.800 M~rm HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
Write the balanced equations for bothof the following reactions and identify the type of reaction for each: Potassium metal reacts with oxygen gas O² to form solid potassium oxide
octane has a density of 0.692 gml at 20 degrees celcius. how many grams of o2 are required to burn 1.50 gal of
The specific heat capacity of the solution produced was 4.20J/g*Celcius, and final temp reached was 34.91 degrees c. How much heat was produced by the dissolution
What is the NMR spectrum of benzene, Suppose Dewar,Ladenburg,and Kekul?? had had a 13 C NMR spec- trometer.How many signals would the various candidates
What is the total number of atoms in one unit (molecule or formula unit) of K2CrO4? What is the total number of atoms in a mole of K2CrO4
a solution consisting of isobutyl bromide and isobutyl chloride is found to have a refractive index of 1.3931 at 20 degrees celsius. The refractive indices at 20 degrees celsius of isobutyl bromide and isobutyl chloride are 1.4368 and 1.3785
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