How many moles of potassium nitrate are contained
An aqueous potassium nitrate solution has a freezing point of -2.0 °C. How many moles of potassium nitrate are contained in 0.5 kg of water in this solution? The freezing point depression constant for water is -1.86 °C/m.
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The bar had these original dimensions: length = 10.000 in, diameter = 0.750 in. Compute the modulus of elasticity of the metal. What kind of metal was it probably made from?
A small object is released from rest and falls 1.00 × 102 feet near the surface of the earth. Neglect air resistance. Approximately how fast will the object be moving after falling through the 1.00 × 102 feet mentioned?
You want to test the hypothesis that Bay Area students are less likely to have tattoos than the state average. You survey 10 Bay Area students and find that 2 of them have tattoos. How likely is it that you would get two students with tattoos, or
The bar had these original dimensions: length = 10.000 in , diameter = 0.750 in. Compute the modulus of elasticity of the metal.
There is a current of 0.40 A flowing through a light bulb when it is connected to a 12.0 V battery. (a) What is its resistance? (b) How much power does it use? (c) How much charge passes through it in one hour? (d) How many electrons pass through
Forty percent of all high school graduates work during the summer to earn money for college tuition for the upcoming fall term. Assuming a binomial distribution, 10 students are selected at random, what is the probability that at least one has a s
Using the ideal gas model with constant cv, determine (a) the final equilibrium pressure, in kPa (b) the heat transfer for the process, in kJ.
Two cars A and B approach each other at an intersection. Car A is traveling south at 20 m/s, while car B is traveling east at 17 m/s. What is the velocity of car A as described by the passengers in car B?
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