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It is possible to convert radiant energy into electrical energy using photovoltaic cells. Assuming equal efficiency of conversion, would infrared or ultraviolet radiation yield more electrical energy on a per-photon basis?
A balloon is inflated with 0.2494g of helium to a pressure of 1.26 atm. If the desired volume of the balloon is 1.25L, what must the temperature be in degreeC
If 2.0 x 10^23 argon atoms strike 4.0 cm^2 of wall per second at a 90 degree angle to the wall moving with a speed of 450 m/s. what pressure (in bar) does the gas exert on the wall
What volume of hydrogen gas is required to produce 3.2 mL of hydrogen bromide gas. Molecular formula: HBr
Calculate the pH of a buffer solution that contains 0.10 M NaH2PO4 and 0.50 M Na2HPO4. The Ka of H2PO4- is 6.3 x 10-8 Question options: 1) pH = 7.90 2) pH = 6.50 3) pH = 7.60 4) pH = 6.80
The standard deviation of the analytical method was determined to be +/-2.3%. What is the standard deviation overall? And in order to reduce the overall standard deviation to +/- 5.0%
a 2.00 kg sample of pure water at 20.0 degree celsius absorbs 3.53 kJ of heat. What is the final temperature of the water?
Sodium bisulfate [NaHSO3] was utilized to remove the excess Hypochlorous acid. Explain what is the chemical reaction for the process
A solution is made by dissolving 0.0350 mol of HF in enough water to make 1.00L of solution. At 24°C, the osmotic pressure of the solution is .975 atm.
As far as dietary concerns, explain what was considered the advantage of utilizing high fructose corn syrup as a sweetener over sucrose
Hydrogen gas is collected at 29 c the total pressure of the system is 773 torr. If the vapor pressure of water at 29c is 30 torr what is the partial pressure of the hydrogen gas?
what is the lewis structure and molecular geometry of pernitrate and carbonate ion?
a solution is made up by dissolving 73 g of glucose in 966 g of water. calculate the activity coefficient of glucose in
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