Calculate what is the molar mass of the solute
Pure benzene has a normal freezing point of 5.5°C. a solution containing 11.4g of a molecular substance dissolved in 150.0g of benzene (Kf=5.12°C/m) has a freezing point of 1.20°C. what is the molar mass of the solute?
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In July in Los Angeles, the incident sunlight at ground level has a power density of 1.2 kW m-2 at noon. A swimming pool of area 50 m2 is directly exposed to the sun. What is the maximum rate of loss of water? Assume that all the radiant energy is
There chance of the condo not being able to withstand a major storm is .008 and because there is a storm every year, the condo will endure 25 storms during the mortgage. .008 * 25 = .2, meaning there is a 20% chance the condo will incurr major dam
A gas expands and does P-V work on the surroundings equal to 351 J. At the same time, it absorbs 175 J of heat from the surroundings. calculate the change in energy of the gas.
find the density, mean, and variance for X. find the reliability function for x. what is the reliability of these lights at 5000 miles? At 10,000 miles?
A researcher comuted the F ratio for a four-group experiement. The computed F is 4.86. The degrees of freedom are 3 for the numerator and 16 for the denominator
What would be the result if we heated a mixture of dichloromethane (bp 39-40 degrees Celsius) and napthalene (C10H8, mp 80-82 degrees Celsius and bp 218 degrees Celsius) to 60 degrees Celsius, collected distillate until no further material distill
Suppose there is a rollercoaster on a frictionless track. It is at the top of the track (the part where the rollercoaster suddenly drops off and you lose your stomach) and at the bottom of the track there is a loop of radius R.
To help your restaurant marketing campaign target the right age levels, you want to find out if there is a statistically significant difference between the mean age of your customers and the age of the general population in your town:
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