Calculate the mass of pure acetic acid
A solution is 40% acetic acid by mass. The density of this solution is 1.049 g/mL. Calculate the mass of pure acetic acid in 140mL of this solution at 20C.
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Lactose is a sugar most commonly found in milk and is made up of carbon, hydrogen and oxygen. After analyzing a sample of it there was found to be 42.1 % of carbon, 6.46% of hydrogen and 51.4% of oxygen by mass.
Assume that the mean hourly cost to operate a commercial airplane follows the normal distribution with a mean of $2,275 per hour and a standard deviation of $260. What is the operating cost for the lowest 10 percent of the airplanes?
After the collision, the 5-kg cart is moving to the right with a speed of 1.5 m/s. What is the final velocity of the 3-kg cart?
Find the acceleration of 0 as a function of theta and the minimum coefficient of friction to prevent the cylinder from slipping?
how fast can you drive on a horizontal roadway around a right turn of radius 30.0 m before the cup starts to slide? If you go too fast, in what direction will the cup slide relative to the dashboard?
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Ethanol has a vapor pressure of 7.9 x 103 Pa at 25ºC. Determine the free energy difference between ethanol in the liquid state at 25ºC and ethanol vapor at 1 bar pressure at 25ºC.
Perform a hypothesis test to see if there is no difference between the effects of plant foods. Perform a hypothesis test to see if there is no difference between the effects of the different grow-lights.
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