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A hot-air balloon is filled with air to a volume of 3.03x10^3 m^3 at 745 torr and 26 degree C. The air in the balloon is then heated to 54 degree C, causing the balloon to expand to a volume of 5.20x10^3 m^3. What is the ratio of the number of moles of air in the heated balloon to the original number of moles of air in the balloon?
Draw the organic product(s) of the reaction of p-methylbenzoic acid with aqueous sodium hydroxide
Use the Heisenberg uncertainty principle to calculate the uncertainty (in meters) in the position of a honeybee weighing 0.67 and traveling at a velocity of 0.80 . Assume that the uncertainty in the velocity is 0.1.
While carrying out Part A, some of the solid calcium hydroxide is inadvertently transferred to the beaker and titrated. a. Will more, less, or the same amount of HCl be used for the titration? Explain.
Write a blance equation with Cu, NaI, I2, and a drop of acetic acid to form CuO and CuCO3.Cu(OH)2.
an acid solution is 0.100 m in hcl and 0.190 m in h2so4.what volume of a 0.150 m koh solution would have to be added to
If 300kJ of heat are exchanged between the system at -5degrees C and its surroundings at 30degrees C, the entropy of the systems plus
What mass in grams of KNO3 will crystalize out of solution
The products of the fastest inactivation process are as explain the mechanism is accountable for the making of the products.
in the following experiment a coffee-cup calorimeter containing 100. rm ml of rm h2o is used. the initial temperature
The liquid contains 42.5 mole% benzene and the vapor contains 73.5 mole% benzene. -Calculate the heating requirement for this process in kW. -Using Raoult's law determine whether or not the given benzene analyses are consistent with each other
Luminol is so sensitive that it can detect blood that has been diluted 10,000 times. A basic solution of luminol is often sprayed onto surfaces that are suspected of containing minute amounts of blood.
Dimethyl sulfoxide is an aprotic dipolar solvent that readily dissolves many inorganic salts. Water is a protic dipolar solvent that dissolves inorganic salts.
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