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You collected a tissue specimen that you would like to preserve by freeze drying. To ensure the integrity of the specimen, the temperature should not exceed -10.5C. The vapor pressure of ice at 273.16K is 611 Pa; delta (fusion) H knot = 6.01 kJ/mol and delta (vaporaization) H knot = 40.65 kJ/mol. What is the maximun pressure at which the freeze drying can be carried out
The molar enthalpy of vaporization of boron tribromide is 30.5 kJ/mol, and it's normal boiling point is 91degrees C. What is the vapor pressure of BBr3 at 34 degrees C.
The decomposition of hydrogen peroxide is a first-order process with a rate constant of 1.06 x 10-3 min- 1. How long will it take for the concentration
A skyscraper in Pittsburg, built in the early 1970's, is supported by water filled columns. Potassium carbonate was added to the water to precent freezing during cold weather. If the solution is 40.0% K2CO3 by mass, what is the predicted freezing ..
Mechanistic rationalization of the effect of the chloro substituent on reactivity (B) Propose an additional experiment to test your mechanistic rationalization IV.
A nutritional calorie (Cal) is equal to 1 Kilocalories (Kcal). A package of crackers has 115 nutritional calories
At 4.00 L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure
Use the van der Waals parameters for chlorine to calculate approximate values of (a) the Boyle temperature of chlorine and (b) the radius of a Cl2 molecule regarded as a sphere.
What is the euillibrium constant, Keq, for the reaction below if a vessel containing 0.45atm of SO2, 0.05 atm of SO3, and 0.25 of O2 has an equillibrium partial pressure for SO2 of 0.55 atm.
Which element is the central atom? Hydrogen cyanide, Ammonia, Calcium carbonate, Magnesium sulfate
What volume will it occupy at each of the following temperatures if the pressure and number of moles are constant
how many grams of sodium hydroxide reacts with a solution containing 73.00 g HCl?
A voltaic cell is constructed that uses the following reaction and operates at 298 K. (Ered Ni+2 is -0.277) Zn(s) + Ni2+(aq) Zn2+(aq) + Ni(s) (a) What is the emf of this cell under standard conditions?
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