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Diethyl ether has a H°vap of 29.1 kJ/mol and a vapor pressure of 0.703 atm at 25.0°C. What is its vapor pressure at 85.0°C?
The vapor pressure of liquid Ni is 0.100 torr at 1606 degrees C and 1.00 torr at 1805 degrees C. The molar heat of fusion of Ni is 3.25 kcal/mol. Determine the vapor pressure of solid Ni at 1200 degrees C.
Suppose that the microwave radiation has a wavelength of 12.7 cm. How many photons are required to heat 200. mL of coffee from 25°C to 62°C?
Molar Concentration of Copper (II) Nitrate, A 25.00 mL sample containing Cu2+ gave an instrument signal of 23.6 units (corrected for a blank). When exactly 0.500 mL of 0.0287 M Cu(NO3)2 was added to this solution
Carbon NMR has only the following peaks: 29.8, 36.1 and 206.8 ppm. Propose a structure of this compound and explain splitting pattern and the ratio
What is the theoretical yield of PH3, when 150 g of Na3P is mixed with 250 grams of water? If the actual yield is 30 g, what is the % yield?
What volume of the solution must be used to make 800 mL of 0.15 M. potassium permangate from a 0.20 M. potassium stock solution.
a 5.0g sample of a hydrate of CaCl2 was heated, and only 4.3 g of the anhydrous salt remained. what is the percentage of the water was in the hydrate?
Determining System Equilibrium, A one-litre cylinder at 458'C is found to contain 0.36 moles of HI (g), 0.15 moles of I 2(g), and 0.18 moles of H2(g). Is this system at equilibrium?
Using ethanol as the source if all carbon atoms, outline multistep synthesis
A student recrystillized 500 mg of an impure sample of naphthalene using methanol-water solvent pair and obtained 150 mg dried crystillized product
When acetic anhydride is dessolved in water it forms acetic acid according to the balanced chemical reaction. Calculate the theoretical yield (in grams of acetic acid, FW 60.05 g/mol) if 8.79mL of acetic anhydride
Commercial club soda is produced by pressurizing water with 10 atmospheres of CO2. Find the value of KH for CO2 on the net or in the library, and calculate how much CO2 is in a 12 fl.oz. glass of club soda.
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