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A 530. g piece of copper tubing is heated to 92.0°C and placed in an insulated vessel containing 49.5 g of water at 39.5°C. Assuming no loss of water and heat capacity for the vessel of 10.0 J/K, what is the final temperature of the system (c of copper = 0.387 J/g·K)?
A solution of KOH in ethanol is made up by dissolving 0.335 g KOH in ethanol to form 250.0 mL of solution. Similarly, 1.455 g of C2H5I is dissolved in ethanol to form 250.0 mL of solution.
If 18.5 mL of 0.800 M HCl solution are needed to neutralize 5.00 mL of a household ammonia solution, what is the molar concentration of the ammonia.
The vapor pressure of br2(l) at 25C is 228 mm hg. if 2.00g of br2 is usedm what is the final pressure in the flask? will there be liquid in the flask.
Calculate the amount of heat needed to boil benzene (C6H6), beginning from a temperature of 6.7 degrees celcius.
Calculate the enthalpy change for converting 10.00g of ice at -25.0°C to water at 70.0°C in kJ. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K,.
A 9.767-g gaseous mixture contains ethane (C2H6) and propane (C3H8). Complete combustion to form carbon dioxide and water requires 1.120 mol of oxygen.
If a bottle of nail polish remover contains 150g of acetone, how much heat would be released by its complete combustion?
Consider a substance X with a Hvap = 20.3 kj/mol and Hfus = 9.0 kj/mol. The melting point, freezing point, and heat capacities of both the solid and the liquid X are identical to those of water
calculate the heat released when 166g of water at 23 degrees celcius is converted to ice at negative 10 degrees celcius
When too much H2CO3 is in the blood, the enzyme carbonic anhydrase catalyzes the conversion of carbonic acid, H2CO3, to carbon dioxide, CO2, and water, H2O.
Five hundred liters of a gas are cooled from 20°C to 10°C while the pressure remains constant.what the new volume will be?
What are the equilibrium partial pressures? Nitrogen dioxide decomposes according to the reaction given below where Kp = 4.48 x10^-13
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