What mass of water (in grams) is contained in 2.1l of soln
An aqueous solution contains 13.5% NaCl by mass. What mass of water (in grams) is contained in 2.1L of the vapor above this solution at 55 °C? The vapor pressure of pure water at 55 °C is 118 torr. (Assume a van't Hoff factor of 1.9 for NaCl.)
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A laser emits light at a wavelength of 591 nm. How many photons and moles of photons does it emit each second if its power is 6.0 W?
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A cord of mass 0.730 kg is stretched between two supports 38.0 m apart. If the tension in the cord is 460 N, how long (in s) will it take for a wave-pulse to travel via the cord from one support to the other?
An aqueous solution contains 13.5% NaCl by mass. What mass of water (in grams) is contained in 2.1L of the vapor above this solution at 55 °C? The vapor pressure of pure water at 55 °C is 118 torr. (Assume a van't Hoff factor of 1.9 for NaCl.) &
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If the coefficient of friction between road and tires on a rainy day is 0.100, what is the minimum distance in which the car will stop? What is the stopping distance when the surface is dry and the coefficient of friction is 0.600?
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