What are the molecular formula and molar mass
One compound contains 80.78% C, 13.56% H, and 5.66% OF. A solution of 1.03g of this in 7.49g of benzene freezes at 3.01 degrees C. What are the molecular formula and molar mass?
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What is the ratio of the dynamic viscosity of air to that of water at standard pressure and temperature of 20°C? What is the ratio of kinematic viscosity of air to that of water for the same conditions?
A sample of n=8 scores has a mean of M=10 after one score is removed from the sample, the mean for the remaining score is found to be M=11. what was the score that was removed?
Margaret walks to the store using the following path: .500 miles west, .200 miles north, .300 miles east. what is her total displacement? that is, what s the length and direction of the vector that points from her house directly to the store?
The downstream pressure (6-in. pipe) is 40 psi when the flow of water is 3.92 ft^3/s. What horsepower is delivered by the pump to the flow?
The heat capacity of liquid water is 4.18 j/g C and the heat vaporization is 40.7 kj/mol. How many kilojoules of heat must be provided to convert 1.0 g of liquid water at 67 C into 1.00 g steam at 100 C?
When kicked, the ball leaves the ground with a speed of 20.0 m/s at an angle of 48.0° to the horizontal. How much does the ball clear or fall short of clearing the cross bar?
What is the work done for 1kg of air? If it is expanded isentropically. What is the pressure of the air leaving the turbine?
Let F be a forest of order 'n' containing 'k' connected components. Prove that F contains n-k edges.
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