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A piston has an external pressure of 14.0 . How much work has been done if the cylinder goes from a volume of 0.180 liters to 0.650 liters.
How many Micromoles of A- and HA are present in the solution. If you now add 3mL of 1M NaOH, will you still have a valid buffer
dissolved in enough water to make 250.0 mL of solution. Write the hydrolyis reaction for the ion that controls the pH, and calculate the pH
Describe a procedure that might be used to separate p-dichlorobenzene
A particular reactant decomposes with a half-life of 115 s when its initial concentration is 0.353 M. The same reactant decomposes with a half-life of 225 s when its initial concentration is 0.180 M.
What is the difference in the chemiacl potential of this gas and an ideal gas at the same pressure and temperature?
Calculate the percentage of monochlorinated products anticipated in the monochlorination of 2,4-dimethylpentane.
Every measurement has a measurement uncertainty. Discuss how precise and accurate measurement can be achieved in spite of the inherent measurement uncertainty.
Calculate molality and mass percent of alcohol in the mixture. A solution of ethanol, C2H5OH, in water has a concentration of 1.996 mol L-1. At 20.0 ºC its density is 0.9677 g mL-1
Consider the reaction that will take place between (S) -2-bromobutane and sodium azide in DMF. A) What is the product of this reaction (give proper stereochemistry of the product formed)
The heaviest known isotope of hydrogen is called tritium, 3/1 H. It decays by beta emission, and half-life of 12.3 years. What fraction of a tritium sample will remain after 5.20 years
A 21.496 g sample of magnesium is burned in air to form magnesium oxide and magnesium nitride. when the products are treated with water, 2.813 g of gaseous ammonia are generated.
What quantity of heat energy transfer is required to vaporize 0.500 mL of mercury at 357 °C, its normal boiling point? The density of Hg (l ) is 13.6 g/mL.
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