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Assume that the kinetic energy of a 1600 car moving at 125 is converted entirely into heat. How many calories of heat are released? and What amount of water in liters could be heated from 20.0 to 58.0 by the car's energy? (One calorie raises the temperature of 1 of water by 1.)
Calculate the amount of heat involved in the conversion of 25.00 g of water at 100 C to steam at 100C. Use Hess's law to calculate the amount of heat involved in converting 25.00 g of liquid water at 25 C to steam at 100C
How much of the solution is needed?
The vapor pressure of ethanol is 100 mmHg at 34.9°C. What is its vapor pressure at 65.5C? (?Hvap for ethanol is 39.3 kJ/mol.)
When NH3 is prepared from 28 g N2 and excess H2, the theoretical yield of NH3 is 34 g. When this reaction is carried out in a given experiment, only 30. g is produced. What is the percentage yield
when a clean iron nail is placed in an aqueous solution of copper(ll) sulfate, the nail becomes coated with a brownish black material.
if a 2.6 reaction vessel initially contains 725 of cyclopropane at 485 how long will it take for the partial pressure
Using the Nernst Equation, calculate the voltage for a concentration cell with: Cu (s)| 0.01 M Cu2+|| 1.0 M Cu2+| Cu (s)
what is the vsepr formula for the nitrogen atom as the central atom in
Chlorine forms a number of oxides with the following oxidation numbers: +1,+3,+4,+6 &+7.Write formula for each of these compounds.
A solution is made by mixing 49.0 mL of ethanol, C2H6O, and 51.0 mL of water. Assuming ideal behavior, what is the vapor pressure of the solution at 20 degrees celcius
A technician was accidentally exposed to potassium-42 while doing some brain scans for possible tumors. the error was not discovered until 48h later when the activity of the potassium-42 sample was 2.1?ci .if potassium-42 has a half-life of 12 h
Which statement is correct concerning the resulting titration curve when a weak acid is titrated with a strong base
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