Gravimetric Problems ОН o... Ni²+ + 2 Ni + 2H+ ОН H..0 Bis(dimethylglyoximate)nickel(II) DMG FM 116.12 FM 58.69 FM 288.91 If the nickel content is known to be near 3 wt% and you wish to analyze 10.0 g of steel, what volume in mL of 11.0 wt% alcoholic DMG solution should be used to give a 50% excess of DMG for the analysis? Assume that the density of the alcohol solution is 0.79 g/mL.
Gravimetric Problems ОН o... Ni²+ + 2 Ni + 2H+ ОН H..0 Bis(dimethylglyoximate)nickel(II) DMG FM 116.12 FM 58.69 FM 288.91 If the nickel content is known to be near 3 wt% and you wish to analyze 10.0 g of steel, what volume in mL of 11.0 wt% alcoholic DMG solution should be used to give a 50% excess of DMG for the analysis? Assume that the density of the alcohol solution is 0.79 g/mL.
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:CALCULATION PROBLEMS
Gravimetric Problems
H.
ОН
Ni²+ + 2
+ 2H+
N
ОН
H…
DMG
FM 116.12
Bis(dimethylglyoximate)nickel(II)
FM 288.91
FM 58.69
If the nickel content is known to be near 3 wt% and you wish to analyze 10.0 g of steel, what
volume in mL of 11.0 wt% alcoholic DMG solution should be used to give a 50% excess of DMG
for the analysis? Assume that the density of the alcohol solution is 0.79 g/mL.
Transcribed Image Text:CALCULATION PROBLEMS
Gravimetric Problems
A sample of an impure iron ore is believed to be approximately 55% w/w Fe. The amount of Fe in
the sample is to be determined gravimetrically by isolating it as Fe,O3. How many grams of
sample should be taken to ensure that approximately 1 g of Fe,O3 will be isolated?
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