really? Our professor really didn't tell us anything about this. We had to search for it online and apparently its a graph of concentration vs. Corrected intensity. But I will try graphing it vs absorbance
Homework Statement
Palladium(II) forms an intensely colored complex at pH3.5 with arsenazo III at 660 nm. A analyst is trying to analyze the palladium content in a meteorite. First 2.534g of the meteorite was digested in strong mineral acids. The resulting solution was then evaporated into...
Homework Statement
The analysis for method of standard addition can be simplified significantly if the volume of the test solution is held constant. However, in some cases, it is difficult to avoid significant volume change after the sample is spiked with known concentrations of the analyte...
i don't understand what you mean by 1g is .72g of commercial HNO3.
1g of HNO3 is 1/1.42 mL
so I need 2mols since there are 2L.
so here is what I am thinking.
Based on the w/w content concentration which is 72%, I use the formula listed above to solve for the mass of the reagent HNO3...
Homework Statement
Nitric acid is commercially available as a 72% ( w/ w) solution ( density, 1.42 g/cm3). How many milliliters of this reagent are needed to prepare 2.00 L of a 1.00M HNO3 solution?
Homework Equations
C%= (g HNO3/ g Solution) * 100
The Attempt at a Solution
So...