What is the sample percent transmittance
The absorbance of a 2.13 x 10-4 M solution of a compound is 0.723 at 385 nm in a 10.00 mm cuvet. What is the sample's percent transmittance?
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If the spring has an unstretched length of 8 in. and the weight is in equilibrium when d = 4 in., determine the stiffness k of spring.
A reference standard prepared by dissolving 5.4 mg of a transition metal coordination compound in 40 mL of water transmits 36.3 percent of incident light at 532 nm. Assuming that Beer's Law is valid for this system.
Suppose a cube of aluminum which is 1.00 cm on a side accumulates a net charge of +1.70 pC. (a) What percentage of the electrons originally in the cube was removed?
If the smaller cylinder starts rolling from rest on top of the bigger cylinder, use the method of lagrange mulipliers to find the point at which the hoop falls off the cylinder.
An electromagnetic wave is traveling through free space. At a particular instant of time the electric field at a point is 2600 V/m. The speed of light is 2.998 × 108 m/s. Find the magnetic field at the same time and at the same place as above
A passenger in an automobile observes that raindrops make an angle of 30 degrees with the horizontal as the auto travels forward with a speed of 60 km/h.
What is the probability that a simple random sample of 40 malegraduates will provide a sample mean within $10,000 of the population mean, $168,000 (to 4 decimals)?
When selecting the appropriate wavelength and bandwidth for a spectrophotometric analysis, the bandwidth should be as large as possible but small compared with the band being measured. Why?
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