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Calculate the mass (in grams) of sucrose in 1.0 kg of a 0.25% sucrose solution.
.134 mole of KCl and .212 mole of CaCl2 were dissolved in water, calculate total number of Cl ions in the solution
substance A has a smaller heat of vaporization than substance B. Which will undergo a larger change in vapor pressure for a given temperature
Calculate the change in entropy when 1.65 mol of a perfect gas with Cvm= 12 J K-1 mol-1 is compressed from 0.64 dm3 to 0.23 dm3 and at the same time heated from 186 K to 412 K. Hint: Entropy is a state function, meaning that the result is path ind..
Compound A c6 h 14 gives three different monochlorides on photochemical chlorination. one of these monochlorides is inert to E2 elimination. the other two monochlorides yiels the same alkene B C6 h12 on being heated with potassium ter-butoxide in ..
Calculate the work of expansion accompanying the complete combustion of 1.0g of glucose to carbon dioxide and (a) liquid water, (b) water vapour at 20 degrees Celsius when the external pressure is 1 atm
Density and Identity, The mass of 5.00 mL carbon tetrachloride is 7.97g. What is the density of the carbon tetrachloride?
in a strongly acidic solution the amino acid lysine esists as the dication. as the pH is raised, what monocation is formed by the loss of a proton form the dication?
An IR spectrum for a sample of this solvent is found to show no appreciable absorbance in the region of 1700 cm-1. Of the given possibilities, what is the most likely identity for this paint solvent
Gas Nitrous Oxide (N20) is used as an anesthetic and in aerosol cans to produce whipping cream. It is a potent greenhouse gas and decomposes slowly to N2 and O2.
lf the catalyzed decomposition of NrO occurs first at a Tr:341 K and then atTr = 229 K, with a k/k, ratio of 0.500, what is the activation energy
What combustion products are produced when materials made from polyacrylonitrile smolder and burn?
A mole of CH4 expands reversibly from 1 to 50 L at 25 degrees Celsius. Calculate the work in Joules assuming 1) the gas is ideal and 2) the gas obeys the van der Waals equation. For CH4 (g), a = 2.283 L^2 bar mol^-2 and b = 0.04278 L mol^-1
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