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On a clear day at sea level, with a temperature of 25 degrees Celsius, the partial pressure of N2 in air is 0.78 atm and the concentration of nitrogen in water is 5.3 x 10^-4 M. When the concentration in water is 1.1 x 10^-3 M what is the partial pressure of N2?
Why do oxyacids become stronger when more oxygens are added. (as in the case of HNO2 being much weaker than HNO3)
A beaker with 1.60×10^2 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100M . A student adds 5.90 mL of a 0.350 M HCl solution to the beaker. How much will..
The initial temperature of the calorimeter is 23.0}C. If 7.20g of CaCl2 is added to the calorimeter, what will be the final temperature of the solution in the calorimeter? The heat of solution\Delta H_soln of CaCl2 is -82.8 kJ/mol.
Determine an expression for the rate of decomposition in terms of elementary reaction rate constants and reactant and productconcentrations. What is the reaction order with respect toethylene epoxide
a scientist wants to make a solution of na3po4 for a laboratory experiment. how many grams of na3po4 will be needed to
What mass of potassium oxalate is formed? If 1.1 g of potassium oxalate are isolated in the laboratory, calculate the % yield.
Would you expect the carotenoid pigment fraction to come off sooner or later than it did with 95:5 Hexane:Acetone? What effect would you expect if you used 100% hexane instead
A process occurs spontaneously and DSsystem 0DSuniverse > 0The pressure is constant.Both (a) and (b) are correct.All of these answers are correct.
how does the technique error affect the report percent water in the hydrated salt? Explain lab 5 percent water in a hydrated salt.
Express your answer numerically in calories using two significant figures.
The instruction booklet for your pressure cooker indicates that its highest setting is 11.6 . You know that standard atmospheric pressure is 14.7 , so the booklet must mean 11.6 above atmospheric pressure.
Demonstrate that L^2and Lzcommute withanyHamiltonian (for a single particle) for which the potential energy is spherically symmetric
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