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What will be the final temperature of the water in an insulated container as the result of passing 5.00g of steam [H2O(g)] at 100.0 degreesC into 100.0 g of water at 25.0degreesC? (ΔHovap=40.79kJ/mol H2O)
methane can be obtained from coal using a process called the gasification of coal. the global chemical equation for the
A gas was enclosed in a rigid-walled container. The initial temperature and pressure were 52°C and 0.55 atm, respectively. If the final pressure were 2.41 atm.
list the names and chemical formulas for two allotropes of oxygen, three allotropes of phosphorus, and four allotropes of carbon
The degree of ionization for propionic acid in an aqueous solution which contains 4.00 mol C2H5CO2H in 2.00 L is
Define the normal boiling point of a liquid. Explain why atmospheric pressure affects boiling points of liquids.
Suppose 250.0 mL of 1.00 M HCl and 250.0 mL of 1.00 M NaOH, both initially at 21.0°C, are mixed in a thermos flask. When the reaction is complete, the temperature is 27.8°C. Assuming that the solutions have the same heat capacity as pure water, co..
Compute the equilibrium concentration of La3+ in the resulting solution. Ignore activity coefficients. Ksp = 1.0 x 10-11 use the below equation to find the net ionic equation. KIO3(aq) + La(NO3)3(aq) ---> La(IO3)3(s) + KNO3(aq)
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25 Celcius. The concentration of Cu2+ in one of the half cells is 1.5 * 10-3 M. what is the concentration of Cu2+ in the other half cell?
Exothermic Reaction. Chemical process in which system evolves resulting in heat transfer to the surroundings. Endothermic Reaction: Chemical process in which system evolves resulting in heat transfer to the system. A. Burning wood in a campfire.
Using the fact that on the surface of the Earth, where g is constant, 1 kg has a weight of 2.2 lbs, find your mass in kg. C) Convert your height in feet and inches into meters (1 ft = 30.48 cm; 1 in = 2.54 cm).
100 ml sample of hard water is titrated with the ETDA solution in problem 2. the volume of EDTA required to reach the end point is 22.44 ml
Calculate the enthalpy change, , for the process in which 41.5 of water is converted from liquid at 2.1 to vapor at 25.0.
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