What is the vapor pressure of a solution if the vapor
What is the vapor pressure of a solution if the vapor pressure of water at 90 degrees C is 0.692 atm, made by dissolving the 1.00 mole of urea in 1.00 kg of water?
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Calculate by what factor the rate of reaction will increase when the concentration of A is doubled and the concentration of B is also doubled? The reaction, A+2B--> products, was found to have the rate law, Rate = k[A][B]2
Determine the numbers of times greater is the rate constant for this reaction at 520 deg. C then at 500 deg. C? R=8.31 J/mol*K. The activation energy for the reaction 2HI---} H2 + I2 is184 kj/mol.
What is the molarity of silver ion in the original solution if 23.6 mL of silver nitrate solution reacts with excess the potassium chloride solution to yield 0.877 g of precipitate.
Discuss how long will it take for the reaction to be 90% complete? It takes 42 min. for the concentration of a reactant in a first-order reaction to drop from 0.45 M to 0.32 M at 25 degree C.
Illustrate and label the structure for each of these enantiomers. Molecular stereo chemistry often influences what we smell. For example 4-(R)-limonene smells like turpentine, whereas 4-(S)-limonene, found in many plants and citrus fruits, smells
A flask was weighed and filled with NO2 gas to a fixed pressure and temperature. The mass of nitrogen dioxide in the flask was found to be 1.40 grams.
Determine the best fit of the absorbance data to a straight line by using the method of least squares to report the best estimate of the slope and intercept of the calibration line.
Determine the enthalpy of this reaction, using the enthalpies for the three reactions below.
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