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The determination of iron in industrial waste stream is often carried out by reacting the water sample with o-phenanthroline to form a red-orange complex that absorbs at 510 nm. Using the data shown in the following table construct the standard calibration curve and determine the concentration of Fe in the waste stream. The cuvette or cell dimension is 1.00 cm.
ppm Fe Absorbance0.0 0.0001.0 0.1832.0 0.3643.0 0.5464.0 0.7275.0 0.269
Determine How many moles of Fe 3 O 4 could be formed if 9.00 mol iron react with 12.00 mol Oxygen and determine How many grams of methane is required to form 45.5g CHcl 3 ?
What is the total electronic energy
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Determine the concentration of the sodium hydroxide solution? Considering this balanced equation given as :
Explain why it takes longer time when anyone cook an egg in boiling water while camping at in elevation of 0.5km in the mountain than it does it home.
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