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At 10 degrees Celsius, the autoionization constant for pure water, Kw, is 2.92e-15. What is the hydronium ion concentration in pure water at this temperature?
Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. how many ozone molecules are present in3.00 L of air under the stratospheric ozone conditions of 265 K temperature
The vapor pressure of pure methyl alcohol at 19 degrees celcius is 90.0 torr and that of pure ethyl alcohol is 40.0 torr. Assume a mixture of methyl alcohol and ethyl alcohol is ideal.
The barometric pressure was 768.6 mmHg when the open end manometer attached to a flask holding a gas read 13.0 mmHg. (mercury level highest on the side connected to the flask.) what is the pressure of the gas in the flask in kilopascals?1.00 atm =..
The first step in industrial nitric acid production is the catalyzed oxidation of ammonia. Without a catalyst, a different reaction predominates: 4NH3(g) + 3O2(g) ? 2N2(g) + 6H2O(g) When 0.0230 mol gaseous NH3 and 0.0250 mol gaseous O2
The average C--H bond energy is 415 kJ/mol. Use the following data to calculate the average C--H bond energy in ethane (C2H6; C--C bond), in ethene (C2H4; C=C bond), and in ethyne (C2H2; C--C triple bond).
If a buffer solution is 0.260M in a weak base (Kb=5.6x10^-5) and 0.550M in its conjugate acid, what is the pH.
water can react with an acid or a base to produce two different products. draw the structure of each and label products
Estimate the boiling point elevation of a saturated solution of LiF at 100 degrees Celsius, assuming it undergoes complete dissociation. The solubility of LiF is 230 mg/100 g of water at 100 degrees celsius, and the boiling point constant of water..
Using your knowledge of hydroboration/oxidation mechanism, predict major and minor products
You have been given the task by your adviser of making a 1-L of a solution with a calcium activity {Ca2+} of 1.3*10^-4 M and he wants you to make two different ways. One in 0.05M KCl and the second in 0.1M MgCl2. How much CaCl2 do you need to add ..
a saturated solution of potassium chloride is prepared in 100.0g of water at 20c. if the solution is heated to 50c how
An industrial chemist puts 1.65 mol each of H2(g) and CO2(g) in a 1.00-L container at a certain temperature. When equilibrium is reached, 0.57 mol of CO(g) is in the container.
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