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Carbon tetrachloride, has a vapor pressure of 213 torr at 40celsius and 836 torr at 80 celsius. what is the normalboiling point of CCl4?
Given that the specific rotation of pure alpha-D-lactose is + 92.6° and that the specific rotation of pure beta-D-lactose is +34°, calculate the equilibrium percentages of the alpha and beta
The total Carbon dioxide content (HCO3 + CO2) in a blood sample is determined by acidifying the sample and measuring the volume of CO2 evolved with a Van Slyke manometric apparatuses.
The volume of sample of gas measured 25 degree C and 1.00 atmpressure is 10.0-L. what must the final temperature be in order to have a final volume 7.5 L at 1.00 atm pressure.
Magnetic resonance imaging (MRI) is a medical technique for producing pictures of the interior of the body. The patient is placed within a strong magnetic field.
The value between 2.0-L bulb, in which the gas pressure is 1.0 atm,and the 3.0-L bulb, in which the gas pressure is 1.5 atm, is opened. what is the final pressure in the two bulbs, the temperature r
Two forces act on a object: a 2000 N force directed at 30 degrees and a 3000 N force directed at 150 degrees. what is the magnitude and direction of a third force such that the net force on the obje
Gaussian function exp(-gx2), where x is the displacement from equilibrium. Confirm that this function satisfies the Schrodinger equation for a harmonic oscillator and find g.
What is the average value of the emf induced in the coil during the time it is flipping?
An analytical laboratory balance typically measures mass to the nearest 0.1 mg. What energy change would accompany the loss of 0.1mg in mass?
Experiments to study vision often need to track the movements of a subject's eye. One way of doing so is to have the subject sit in a magnetic field while wearing special contact lenses that have a
The mass of the cylinder is 12 kg, its radius is 0.10 m, and the cylinder rolls smoothly on the horizontal surface. (Let clockwise rotation be considered positive, as well as motion to the right in
Sodium hydroxide is a common ingredient in drain cleaners such as Drano. The mole fraction of sodium hydroxide in a saturated aqueous solution is 0.310. What is the molality of the solution?
An Airbus A320 jetliner has a takeoff mass of 75000 kg . It reaches its takeoff speed of 82m/s in 35 seconds. What is the thrust of the engines?
What are the four side products that are possible for the aldolcondensation between benzaldehyde and acetone?
How many seconds will be required to produce 1.0g of silver metal by the electrolysis of a AgNO3 solution using acurrent of 30A?
The voltage across which circuit element (resistor, capacitor or inductor) increases as the frequency is increased? Sketch the expected curve of V vs. f for this element.
500 ml of a .20-M sodium acetate is added to an equal volume of .20-M acetic acid creating a buffered solutionc.Use Le Chatlier's principle and the common ion effect to explain how the pH will be a
The incresase in the length of the rod is measured by a mocrometer screw arrangement to be 1.19mm. What is the linear thermal coefficient of expansion a for the rod? Show your work.
A liquid has a molar enthalpy of vaporization of 66 kJ/mol and amolar entropy of varporization of 94 J/mol. Calculate the normal boiling point of the liquid and the temperature at which the vapor pr
A uniform magnetic field of magnitude 0.70 T is directed perpendicular to the plane of a rectangular loop having dimensions 7.7 cm by 13 cm. Find the magnetic flux through the loop.
Based on the molar mass of anhydrous salt (1.25) calculate the moles of anhydrous salt. determine the smallest whole number ratio of moles of water to moles of anhydrous salt.
Iron rails are used to build a railroad track. If each rail is 10.000m long when it is placed in the track at a temperature of 20.0 C, how much space must be left between the rails so that they just
Assuming ideal efficiency, in that we can ignore friction in moving parts, inefficient heat transfer, etc., find the: (a) height to which one day's worth of coal must be piled in a square room 10m on
A 24 hour urine specimen was diluted to 2.000 L. After the solution was buffered to Ph 10, a 10ml aliquot was titrated with 27.32ml of 0.003960 M EDTA.