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Question: Air at a temperature of 10°C and a pressure of 50 kPa flows over a blunt nosed body at a velocity of 500 m/s. Estimate the pressure acting on the front of the body.
A mixture of the compounds sodium bromide and calcium oxide contains 23.4 g of calcium oxide and is 69.1 % by mass calcium oxide. The compound sodium bromide is 77.7 % by mass bromine. Calculate the mass (g) of bromine in the mixture.
Its minimum angular momentum about that axis is h. In classical terms, how many revolutions per second do the H atoms make about the axis when in that state?
Question- At a given temperature, you have a mixture of benzene (vapor pressure of pure benzene = 745 torr) and toluene (vapor pressure of pure toluene = 290 torr). The mole fraction of benzene in the vapor above the solution is 0.590. What is the..
Cynthia lives 5.0 miles from grossmont college. Assuming that there are no traffic signals , how long would it take in minutes her to reach school if she drives35 MPH. If cynthia oversleeps and drives 50 MPH how long will it take?
What I don't understand is how they got it. I know that tetraphosphorus hexoxide is P4O6 and water is H2O. What I don't understand it how it becomes 4H3PO3.
calculate the pH of a solution that is prepared by mixing 75ml of 0.20 M (NH4)2SO4
assuming complete dissociation of the solute how many grams of kno3 must be added to 275 ml of water to produce a
What volume in mL is needed for the solution of HCl to react with a sample of Al 16.0? 2Al +6HCl => 2Al + 3H2. Calculate the molar concentration of ions in a 0.0200M solution is in Al(NO3)3
Problem- To what volume should you dilute 20mL of a 11.0M H2SO4 solution to obtain a 0.150M H2SO4 solution
Assuming levels of atmospheric CO2 are 390 ppm CO2, what is the pH of rainwater in equilibrium with the atmosphere for the pre-industrial atmospheric CO2 concentration of 280 ppm,v.
Why is it important to use a minimum volume of hot solvent to dissolve an impure sample during recrystallization and why is it advisable to cool the solution of a mixture slowly during recrystallization
A sample of chlorine gas in confinedin a 5.9L container at 220. torr and 27 degrees Celsius. How many moles of gas are present in the sample?
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