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Diethyl ether has a deltaH vap of 29.1 kJ/mol and a vapor pressure of 0.703 atm at 25.0 C. What is its vapor pressure at 81.0 C
which cation will precipitate first. What minimum concentration of Na2SO4 is required to cause the precipitation of the cation that precipitates first
A solution is made by dissolving 5.2246g of EDTA in 4.0000 liters of DI water. Assuming the EDTA was dried at 80°C and it still contains 0.3% excess moisture, calculate the EDTA molarity. (0.003499M)
how could you use this information to design a crystallization procedure?
In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV
A block of alumium with a volume of 91.1cm^3 absorbs 64.6 j of heat. If its initial temperature was 33.7C, what is its final temperature
Draw the structures of propene (propylene) and tetrafluoroethene. Draw the basic repeating units when each of these compounds polymerizes. Describe some practical uses of each polymer.
what is the concentration of glyceraldehyde-3-phosphate? Assume a temperature of 25.0 °C. The constant R = 8.3145 J/(mol·K)
Draw N-ethyl-3-methylpentanamide. Draw your structural formula with all necessary hydrogen atoms.
250g of ice at 265K is mixed with 100g of water ar 305K. Calculate the final temperature of the mixture. Assume that no energy in the form of heat is transferred to the environment. (heat of fusion=300J/g; c(ice) =2.06J/g*K, c(water)=4.184J/g*K.
A common way to determine CEC of a soil is to saturate the CEC with NH4+ ions. If a soil holds 286mg
Draw the structural formula & identify the types of bonds in each of the following organic compounds: C5H8 & C4H6
At 900 degrees C, titanium tetrachloride vapor reacts with molten magnesium metal to form solid titanium metal and molten magnesium chloride
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