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Physical properties of diethyl ether, (C2H5)2O, are given as .ΔH° fusion 7.66 kJ/mol, melting point -116.0°C, ΔH° vaporization 26.0 kJ/mol, boiling point 35.0°C, specfic heat liquid 3.74 J/g·°C, specific heat gas 2.35 J/g·°C follow these physical properties and find out how much energy is needed to raise the temperature of 22.8 g of diethyl ether from -10.0 degree celsius to 142.0 degree celsius?
what is the final concentration of NaOH when 50.0 mL of .200 M NaOH is added to 50.0 mL of 0.500 M NaOH?
It takes 55.0 J to raise the temperature of an 11.7 g piece of unknown metal from 13.0 C to 25.0C. What is the specific heat for the metal?
The concentration of KBr in a solution prepared by dissolving 2.13 g of KBr in 897 g of water is moral
Draw the Lewis structure for each including formal charges and describe in paragraph format how you went about solving the problem and making sure the answer was correct.
compressed gas cylinder contains 1.00 x 10^3 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18 C.
The volume of a cylinder in an auto is 0.44L. the cylinder is filled with a gasoline and air mixture at 1.0 atm and then is compressed to 0.073L prior to ignition.
Lysine is an amino acid that is an essential part of nutrition but which is not synthesized by the human body.
involves an analyte which is physically separated from all other components of the sample and solvent?
a 1.00 L solution contains 4*10^-4 M Cu(NO3)2 and 1.6*10^-3 M ethyleneddiamine. the Kf for Cu(en)2^2+ is 1*10^20, what is the concentration of Cu+2 in the solution
Cesium-137 has a half-life of 30 years. You begin with a 20.0 g sample of Cs-137. How many half-lives occur if you wait a total of 60 years?
What is the final temperature of the water and pieces of metal?
An aqueous solution has a density of 0.80g/mL and is 51.0% C2H6O by mass. Determine the molar concentration of C2H6O.
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