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propanol (p*1 = 20.9 torr at 25 °C) and 2-propanol (p*2 = 45.2 torr at 25 °C) form ideal solutions in all proportions. Let x1 and x2 represent the mole fractions of 1-propanol and 2-propanol, respectively, in a liquid mixture and y1 and y2 represent the mole fractions of each in the vapor phase For a solution of these liquids with x1 = 0.270, calculate the composition of the vapor phase at 25 °C if the vapor above the liquid phase is composed only of 1-propanol and 2-propanol. y1= y2=
If it takes 526 J of energy to warm 7.40 grams of water by 17 degrees Celsius, how much energy would be needed to warm 7.40 grams of water by 55 degrees Celsius?
Even with a drying tube, leaving phenylmagnesium bromide exposed to air will eventually lead to its decomposition. Why? What is the product of this decomposition pathway?
A student used a DCP solution (standardized to 9.94x10-4M) to analyze a sample of extract from 3.50g of solid food. The titration required 22.49mL of DCP. 91.75% of all the ascorbic acid in the food was collected in the extract. (MM Ascorbic Acid ..
A chemist prepares a sample of hydrogen bromide and finds that it occupies 258 mL at 60 degrees celsisus and 476 Torr. What volume would it occupy at 0 degrees celsisus at the same pressure? Answer in units of mL to 5 decimal places.
After a fatty acid has been desaturated, can it be desaturated a second time immediately thereafter? Why, or why not?
initially the temperature is 97.3 degrees celsius. At this temperature the partial pressure of water is 745 mm Hg (torr). What is the % by mass of aniline in the distillate?
A solution of 2.00 g of para-dichlorobenzene (a clothes moth repellant) in 50.0 g of cyclohexane freezes at 1.05 C. What is the molar mass of
calculate the unknown concentration for the analyte noted as (xM) from the potential data given at 25 oC Pt/Fe 2+ (0.05 M)//Ag+ (xM) /Ag.
Calculate the number of moles of liquid propane that can be stored in the same volume if the density of the liquid is 0.590 {rm{g}}/{{rm{mL}}}.
Draw a diagram of a molecule of H2O ( Water), showing the outer layers and how the individual electrons are shared. 3. Why does each atom feel more stable?
The gas receives 525 J of heat from its surroundings and does 428 J of work. What is its final internal energy?
According to Hund's Rule, how many unpaired electrons are in the valence shell of element 10?
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