What was the concentration of mgf2 in the original undiluted
A 32 mL sample of asolution of MgF2 was diluted with water to 70 mL. A 25mL sample of the dilute solution was found to contain 0.09 moles ofF-. What was the concentration of MgF2 in the original undiluted solution?
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An investigator wishes to compare the ability of two competing statistical tests to declare a mean difference of 15 units statistically significant. The first test has probability 0.9 and the second test has probability 0.8 of being significant if
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A 32 mL sample of asolution of MgF2 was diluted with water to 70 mL. A 25mL sample of the dilute solution was found to contain 0.09 moles ofF-.
A customer service center receives phone call at a rate of 10 per hour. Let C be the number of phone calls received in a 4 hour shift. Let T be the inter-arrival time (in hours) of between 1st and 2nd calls.
Calculate the percent by mass of the solute ethanol in a solution produced by combining 2940 mL ofC2H5OH to of the solvent tetrahydrofuran. 4060 mL
Flow one has 1 kg/s at 400K, flow two has 3 kg/s at 290K, and flow three has 2kg/s at 700 K. Neglect kinetic energies. Calculate the volumetric flow rate at the exit for variable specific heat.
On Monday, Pan was not stopped by any red lights on his drive to school. What is the probability that his drive was between 12 and 14.5 minutes on Monday? What is the standard deviation of Pan's driving time on a day in which he encounters two red
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