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A second assay was performed by making a derivative, ammonium phospho-molybdate, which has visible absorption peak at ~ 400nm.
From the Beer's Law plot, estimate the concentration of the unknown solution: (Absorbance of solution of unknown is 0.3261 Abs. Units=9.08x10^-5 M)
The analytical solution volume was 100.00mL; the sample volume used was 2.00mL.
Calculate the concentration of phosphoric acid in the sample.
A voltaic cell employs the following redox reaction: 2Fe3+(aq)+3Mg(s)--> 2Fe(s)+3Mg2+(aq+ Calculate the cell potential at 25 under each of the following conditions.
Determine the pressure, in torr and atm, of 3.94 mol carbon monoxide gas in a 4.25 Litre tank at temperature 31 degrees Celsius.
If B gas at 0.221 bar is injected into a container at 665 °C that contains excess A, what are the partial pressures of all gases present at equilibrium?
clockwise direction around a circular track with a constant speed of 200 km/hr. if is at the southernmost end of the track then determine the velocity of the car?also express your answer in M/S
What values are quoted in handbooks for common hydrates of your cation?
0.80 g of hydrogen chloride (HCl) is dissolved in water to make 5.5 L of solution. What is the pH of the resulting hydrochloric acid solution?
alcohol dehydrogenase. Assume all of the ethanol gets converted to acetaldehyde.a) What will the final concentration of NADH be in the solution?
how many grams of copper hydroxide can be prepared from 2.7 g of copper(II)nitrate and excess sodium hydroxide?
Finding the solubility product - Ksp - of a solution of PbI2, A 1.00 L solution saturated at 25 decrees Celsius with lead (II) iodide contains 0.54 g of PbI2
Calculate the energy produced when 15 grams of liquid methanol (CH3OH) is completely burnt in air to produce carbon dioxide gas
A gas has a volume of 95 ml at a pressure of 930 torr. what volume will the gas occupy if the pressure is increased to 970 torr?
Cassify these compounds by whether they behave as strong acids, weak acids, strong bases, or weak bases in aqueous solution.
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