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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?
The base solution was added to the acid solution but was not stirred while temperature measurement were not made: c.) Some of the base splashed out of the calorimeter while pouring:
If 0.500 L of aqueous solution with a density of 1.05 g/ml contains 18.3 ug (micrograms) of poison, express the concentration in ppm and ppb.
the henry law constant kh for o2 in water is 5.6610-5g l-1 torr-1 at 20 degrees c. calulate the concentration of
Chemical Kinetics - Predict the rate law of a reaction based on the mechanism of the reaction - What is the overall reaction and Predict the rate law based on the mechanism.
Sodium sulfate is slowly added to a solution containing 0.0500 M Ca2 (aq) and 0.0360 M Ag (aq). What will be the concentration of Ca2 (aq) when Ag2SO4(s) begins to precipitate. What percentage of the Ca2 (aq) can be separated from the Ag (aq) by s..
complete and balance the following redox equation. What is the coefficient of H2O when the equation is balanced using the set of smallest whole-number coefficients
If you wanted to make a 3 liter solution of 500 mM formic acid buffer at ph 3.9 how many grams each of sodium formate (MW=68g/mol) and formic acid (MW=46g/mol) would you add... 98.6 g sodium formate and 2.3g of formic acid or 20.2 sodium formate
in the reaction p4 5 o2 rarr 2 p2o5 how many moles of o2 are consumed each time 0.5 moles of p2o5
calculate the vapor pressure of an aqueous solution at 30 degrees C made from 100 g of sucrose (C12H22O11) and 100g of water
An aqueous solution of sodium hydroxide reacts with an aqueous solution of ammonium chloride, yielding aqueous ammonia, NH3, and water
What is the alkalinity of the river, What concentration of acid, for example, HCl, would result in a pH of 7.5
Draw the product for the chlorination of 2-methylbutane that proceeded through a secondary radical
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