What is the average atomic weight of the element
A certain element has three isotopes. The isotopic masses (amu) and abundances in ( ) are: 159.37 (30.60%), 162.79 (15.79%), and 163.92 (53.61%). What is the average atomic weight (amu) of the element?
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The mass of an atom oscillating at a frequency of 8.6 x 1011Hz in its lattice is 1.2 x 10-26 kg. If the amplitude of its oscillations is 0.045nm, find (a) its total energy in joules and eV, (b) its maximum speed, (c) its maximum acceleration, and
A peroxidase enzyme isolated from human red blood cells was found to contain 0.29% selenium. What is the minimum molar mass of the enzyme?
The financial industry Earnings per share last year were $3. This year, earnings per share in 10 financial companies were as follows. Test the hypothesis that this year's earnings differ from last year, two-tail, at alpha (significance level) =.10
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A certain element has three isotopes. The isotopic masses (amu) and abundances in ( ) are: 159.37 (30.60%), 162.79 (15.79%), and 163.92 (53.61%).
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ranslate the excerpt below into a confidence interval for p and approximate the value of the level of confidence, c. In a survey of 8448 adults, 29.9% said they were taking vitamin E as a supplement. The survey's margin of error is plus or minus 1
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The conduit between the turbine and nozzle (nozzle) output of an engine is 0.60 m in diameter. Calculate the force required to maintain the nozzle in the duct. The gas is k = 1.4 and R = 265 n.m / kg.K
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