What is the concentration of ni in micromolar units
A 50 ml vol. of 25 ppm solution of Ni(II)is made from
NiCl2*6H20.
a.What is the concentration of Ni(II) in micromolar units.
b. How many milligrams of NiCl2*6H20 are combined in the 50 ml. volume.
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The gas with an initial volume of 24.0 L at a pressure of 565 mmHg is compressed until the volume is 16.0 L. What is the final pressure of the gas, assuming the temperature does not change?
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How many grams of sodium formate, NaCHO2, must be added to 750.0mL of .250 M of formic acid, HCHO2, to obtain a buffer with pH of 5.5
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What is the concentration of Ni(II) in micromolar units. How many milligrams of NiCl2*6H20 are combined in the 50 ml. volume.
A 2.12 g sample of KClO3 (s) was heated to produce KCl (s) and O2 (g). The sample of oxygen was collected over water. The pressure of the atmospheric pressure was 754 torr and a temperature of 22C.
What is the mass percent of H2O2 in the sample if43.2ml of a0.105M KMnO4 soln is needed for the titration of the sample? What is the reducing agent in the redox reaction?
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A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25M . The concentration of Cu^2+ in one of the half-cells is 1.5×10-3 . What is the concentration of Cu2+ in the other half-cell?
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