Calculate the molar mass of the solute
When 12.3 g of an unknown, non-volatile, non-electrolyte, X was dissolved in 100. g of methanol, the vapor pressure of the solvent decreased from 122.7 torr to 118.6 torr at 298 K. Calculate the molar mass of the solute, X.
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A car traveling 85 km/hr strikes a tree. the front end of the car compresses and the driver comes to a rest after traveling 0.80m. What was the average acceleration of the driver during the collision?
Steam enters an adiabatic turbine steadily at 3 MPa and 400 deg C and leaves at 70 kPa and 100 deg C. if the power output of the turbine is 2 MW (mega watt), determine the isentropic efficiency of the turbine?
When a sample of a simple hydrocarbon,CxHy, is burned in oxygen 0.300 g ofCO2 and 0.123 g of H2O are isolated. Themolecular weight of the compound was determined to be 70.1 g in aseparate experiment.
An Angry Basketball player throws the ball straight down to the floor. If the ball bounces straight up and returns to the floor 2.5 seconds after first striking it what was the balls greatest height above the floor?
Determine the rate of heat addition and rejection for this Otto cycle when it produces 179 hp and the cycle is repeated 1040 times per minute.
A solid sphere with radius 0.050m and a mass of 3.0kg has a rod through its center. a net torque of 6.0*10^-4 Nm is used to spin the sphere about the rod. what is the sphere's angular acceleation?
Starting in the ground state n = 1 is a hydrogen atom, an electronis excited to a higher energy level by absorption of 121.6 nmlight. What is the final energy state of the electron?
An ocean liner leaves New York City and travels 16.0° north of east for 245 km. How far east and how far north has it gone? In other words, what are the magnitudes of the components of the ship's displacement vector in the following directions
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