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Halothane, C2HF3BRCl, is a commonly used gaseous anesthesia. One suggested dosage is 3.0% halothane by volume. What is the partial pressure of halothane if air administered to the patient is at a pressure of 775 mm Hg?
the temperature of the surrounding remains essentially constant during the process. Calculate deltaSsystem, deltaSsurroundings and deltaStotal.
What is the mass of H2SO4 in 520.0 cm3 sample of sulfuric acid that has a density of 1.55 g/cm3 and which consists of 55.0 % H2SO4
The initial temperature of the acid was 22.1 degrees Celsius and the initial temperature of the base was 22.1 degrees Celsius. after mixing, the temperature was 27.8 degrees Celsius. the density of the solution is assumed to be .998 g/mL. What is ..
If I have 7.6057 grams of helium gas held at a temperature of 5 atm and in a container with a volume of 50 liters, what is the temperature
given the total mass of water on earth is 1.55 1021kgand the amount of oxygen molecule releases by photosynthesis is
How much heat in kilojoules is evolved in converting 1.50 mole of steam at 150 deg celsiys to ice at -35.0 deg. celsius? The heat capacity of steam is 1.84 J/g. deg celsius.
Identify the total number of ethyl groups. (b) Independently of (a), identify the total number of methyl groups. Note that these groups are not necessarily confined to those specifically mentioned in the name.
Above 300 degrees C, ammonium nitrate decomposes to N2, O2, and H2O. Write a balanced chemical reaction describing the decomposition of ammonium nitrate, and determine the standard heat of reaction by using the appropriate enthalpies of formation.
Atoms of different elements also have different average masses, just like kernels and marbles. Use the mass values from a periodic table to answer the following questions.
Calculate DG0 for the reaction below. The standard molar entropy change for the reaction at 298 K is -287.5 J/mol·K.
A student added a total of 15.00 mL of 0.5241 M HCl to 1.4881 g to of an unknown which contained CaCO3 (molar mass = 100.09 g/mol). The resulting solution required 12.21 mL of 0.1211 M NaOH to back titrate the excess HCl. What was the percent CaCO..
The (-) enantiomer of a compound has a specific rotation [a]= -86 degrees. A sample of this pure enantiomer, when measured in a two dm sample tube, gives an observed rotation
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