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Compute the change in heat when 12.60g of water vapor (steam) at 100.0C condenses to liquid water and then cools to 22.50C. For water:
Sice=2.09J/g*C
DeltaHfus=6.01kJ/mol
Swater=4.184J/g*C
DeltaHvap=40.79kJ/mol
Ssteam=1.99J/g*C
Which of the following properties indicates the presence of strong intermolecular forces in a liquid
If a house has a carbon monoxide concentration of 5.0 ppm. Explain what volume of carbon monoxide is present in 1.0 l of air
A beaker contains 250 mL of .0150 M silver ion. To this beaker is added 250 mL of .300 M bromide ion. What is the concentration of Ag+ in the final solution. Ksp for AgBr = 5.0 x 10^-13
A cylinder contains 250 g of Helium at 200 K. The external pressure is constant at 1 atm. There is an increase in temperature of 56 K. Calculate the heat lost or gained by the system in response to this change in the external temperature.
when an atom or group of atoms is substituted for an h in benzene c6h6 the boiling point changes. explain the order of
At 800K the equlibrium constant, Kp for the following reaction is 3.2 *10^-7. 2H2S(g) 2H2(g)+S2(g). A reaction vessel at 800 K initially contains 3.00 atm of H2S. If the reaction is allowed to equilibrate, what is the equlibrium pressure of S2
Calculate the solubility of copper (II) iodate in 0.56 M copper (II) nitrate. Ksp* is 7.4x10-8 M3.
The solubility of the salt, M3X, is 2.70×10-3 g/L. Calculate the solubility product constant, Ksp, for this salt. The molar mass of the salt is 292.9 g/mol.
Why we add buffer 7 and 1:4 toluene and 2-propanol to crude oil ahead of titrate with Cdcl2 to dtermine H2S in crude oil.And can toluene and 2- propanol be replaced with other solvent in terms of cost and safety.
Compare the stabilities of an allylic anion and a homoallylic anion, each with the formula C6H11-. An allylic anion has the negative charge on an atom adjacent to the double bond.
Suppose you carry out a TLC separation of acetaminophen and phenacetin on silica gel using a nonpolar solvent. Which should have the higher R1 value. why
The volume of water in the calorimeter decreased by 0.16 during the reaction. Calculate the enthalpy of the reaction (in kJ/mol). Show all steps of the calculation
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