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Problem- For how many minutes would 8.55 A of current need to flow to produce 3.17 x 10^4 C?
Give your answer with short explanation
A ground-state H atom absorbs a photon of wavelength 94.91 nm, and its electron attains a higher energy level. The atom then emits two photons: one of wavelength 1281 nm to reach an intermediate level, and a second to return to the ground state.
The heat capacity of copper is 0.382 J/g C. A 22.6 g sample of copper at 93 C is placed in 50 g of water at 23.9 C. What is the final temperature of the system
If 28 mL of NaCl reacts completely with 46 mL of 0.44 AgNO3, what is the molarity of the NaCl solution? The reaction is: AgNO3 + NaCl = AgCl + NaNO3
For the reaction CO2(g)+H2(g)=CO(g)+H2O(g) at 1000 K, an equilibrium mixture of the gasses consists of 0.276 mol H2, 0.276 mol CO2, 0.224 mol CO and 0.224 mol H2O. What is the value of delta G for the reaction at this temperature
When carbon is burned in air, it reacts with oxygen to form carbon dioxide. When 16.8g of carbon were burned in the presence of 57.4g of oxygen, 12.6g of oxygen remained unreacted. What mass of carbon dioxide was produced
A collapsed balloon is filled with He to a volume of 11.2L at a pressure of 1.00 atm. Oxygen (O2) is then assed so that the final volume of the ballon is 21
If 450g of acetone is reacted with 650g of benzaldehyde and it yields 350g of the product what is the percent yield? Show your calculations.
A piston-cylinder device contains a saturated mixture of steam and water having a total mass of 0.5 kg at a pressure of 160 kPa and an initial volume of 100 liters
an equimolar mixture of hydrogen and deuterium effuses through an orifice at a certain temperature. calculate the
The partial pressures of PCL5, PCl3, and Cl2 are .875 atm, .463 atm, and 1.98 atm. What is the value of equilibrium constant?
How many moles of HCl are present in 35.5 mL of a 0.200 M solution? 2. A 50.0 mL sample of a 6.0 M solution of HCl is diluted to 200. mL. What is the new concentration
You are in a labratory and need to make 90 mL of a solution that is 2 micrograms Eb per 0.1 mL safflower oil. outline the steps and calculations.
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