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3 isotopes of argon occur in nature. Ar-36, Ar-38, and Ar-40. The abundance of each are as follow: 0.34%, 0.07%, and 99.59%, Calculate the average atomic weight of argon?
A small bubble rises from the bottom of a lake, where the temperature and pressure are 8ºC and 6.4 atm, to the water's surface, where the temperature is 25ºC and pressure is 1.0 atm.
Compute the atomic mass of 109Ag if natural abundance of 107Ag is 51.87% & atomic mass =106.905 amu and determine the probability of particle would be located in the range
How can I make up 100ml of a solution containing Compound A (solid, purity of 83.7%) at 90 ug/ml and compound B (liquid, density 1.12 and purity of 90.5) at 30 ug/mL for HPLC reference standard.
Determine the theatrical yield if 1.56 grams of hydrogen is permitted to combines with 9.70 grams of nitrogen producing 1.43 grams of ammonia?
Compute the number of mL of 2.00M H2SO4 required neutralizing 125.5mL of 1.2M KOH
Given that the density of the gas mixture =0.312 g/L at the pressure of 0.2 atm and temperature 500 Kelvin At equilibrium. Determine the value of Kc also express your answer in units of (mol/L)?
How many kilograms of CO2 are produced from the complete combustion of 1.00L of gasoline assume that the gasoline has the formula C8H18.
Calculate the final temperature of 33 mL of ethanol initially at 13 degrees Celsius upon absorption of 657 J of heat. (density of ethanol =0.789 g/mL).
A student has prepared a 0.309 M solution of Barium hydroxide and a 0.443M solution of hydrochloric acid for you. Determine the volume of the hydrochloric acid solution will be needed to exactly neutralize 10.0 mL of the Barium chloride solution.
Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 65.0L and which contains O2 gas at a pressure of 16,500kPa at 23°C.
What is the heat change of H 2 O If the final temperature of the mixture = 25 degree celsius?
Why is toxicity diminished in other congeners where chlorines are removed from the 2,3,7,8 positions, or when chlorines are added to remaining positions on the rings?
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