How many kilograms of benzyl salicylate are needed
A Sunscreen preparation contains 2.50% by mass benzyl salicylate. If a tube contains 4.0 ounces of sunscreen, how many kilograms of benzyl salicylate are needed to manufacture 325 tubes of sunscreen?
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The two shells are fired at the same speed. Assume that air resistance is negligible and that the magnitude of the acceleration due to gravity is .
Gaseous dinitrogen pentaoxide decomposes into oxygen and nitrogen dioxide. If we start with a partial pressure of 200 torr of the N2O5, it's equilibrium pressure is 100 torr. What is the equilibrium partial pressure of oxygen?
Determine: the net work per cycle in kJ, the power developed by the engine in kW if the cycle is executed 1000 times per minute and the ccyle thermal efficiency. Assume the cold-air standard approximation.
Draw the vector starting at the rowboat. The location, orientation and length of the vector will be graded. The vector's length is displayed in meters per second.
When 1.535 g of methanol (CH3OH) was burned in a constant-volume bomb calorimeter, the water temperature rose from 20.27oC to 26.87oC.
Assuming the turbines and the pumps to be isentropic, and determine the mass flow rate of steam through the boiler for a net power output of 15 MW.
The vertical component of the Earth's magnetic field at this location has a magnitude of 44µT. What is the magnitude of the induced emf between the ends of the beam?
Determine (a) the degrees of subcooling of the refrigerant in the condenser, (b) the mass flow rate of the refrigerant, (c) the heating load and the COP of the heat pump.
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