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38 When 2.0 g of aspirin was shaken up in a flask containing two immiscible liquids it was found that the mole fractions in the two liquids where 0.11 and 0.18. When a further 1.0 g of aspirin was added, it was found that the mole fraction in the first liquid increased to 0.15. What would you expect the mole fraction the second liquid to become?
what is the condensed structural formula for the product of the hydrogenation of 2-butene using a platinum catalyst
a graduate cylinder contains water of 155 ml . a piece of iron of 15.0 g and density 7.86 cm3 and a piece of lead of
The solution has a density of 1.286 g/cm3. Calculate E for the cell. Assume all the H+ ions come from the first dissociation of H2SO4, which is complete.
a urine sample contains 46.5mgl-1 of ethanol. the density of ethanol is 0.79gcm-3. what is the concentration expressed
How many water molecules are in a block of ice containing 1.50 mol of water (H_2O)?
What are some differences and/or similarities in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity
Borane forms complexes with sulfides and amines. Draw a suitable structure to represent the complex formed between BH3 and dimethyl sulfide
How much energy (in kilojoules) is required to convert 110 mL of diethyl ether at its boiling point from liquid to vapor if its density is 0.7138 ?
What is the wavelength in meters of the photon emitted when this highly excited hydrogen atom of hydrogen makes its transition from the n = 9 to the n = 8 state
Although the planet Venus is similar in size and composition to the Earth, the atmosphere is not conductive to life. The average temperature is about 740 K
The boiling point of water is 100.0 degrees C at 1 atm. How many grams of calcium chloride(111.0 g/mol CaCl2), must be dissolved in 231.0 grams of water to raise the boiling point by .350 C. Kbp(water) = 0.512 C/m
Predict whether, to any significant extent, MnO-4(aq) will oxidize Cl-(aq) to Cl2(aq) in acidic solution, The reaction is spontaneous under standard conditions
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