What is the molality of the bleach
Household bleach is a 5 mass % aqueous soln. of sodium hypochlorite(NaOCl). What is the molality of the bleach. What is the mole fraction of NaOCl in the bleach.
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Find the probability that he gets at least 3 emails on a particular day? What is the standard deviation of the number of emails that Tim gets in one day?
A 3.23 gram sample of a sodium bicarbonate mixture was reacted with excess acid. 48.52 mL of the evolved gas was collected over the water at 0.930 atm and 23.0 degrees Celsius. What is the percentage of sodium bicarbonate in the original mixture?
Use properties evaluated at [(20 + 4 0)/2 ] degree C for the whole problem, but report the local error in h at the end to get a sense of the error incurred by the simplification.
Epsom salts are hydrates of magnesium sulfate. The formula for Epsom salts is MgSO4 . xH2O. A 7.834g sample is heated until a constant mass of 3.825g is obtained, indicating that all the water has been evaporated off.
Find the equation of the path, y=f(x), and then determine the ball's velocity and the normal and tangential components of its acceleration when t=0.25s.
Let A be the number of rounds until Lionel wins his first stuffed animal. What is the distribution and parameters of A? Also, find the expected value and variance of A.
Define F in terms of the story and name the distribution and its parameters. What is the expected number of people in his sample that have toe-nail fungus?
According to one study that looked at the percent of left-handed people by state, 11.6% of people in Indiana are left-handed. You survey 15 Indiana residents at the state fair and ask whether they are left-handed. Call the random variable in this
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