كلية العلوم Q34) Experiment 10: Gravimetric Determination of Nickel In the gravimetric determination of nickel by precipitating as bis (dimethylgloximato)-nickel(II), the effect of mistakably using 50% alcohol for washing the precipitate instead of 30% is: a) Washing with 50% alcohol will help to get denser mass for the precipitated chelate making it easier to be filtrated b) Using 50% alcohol will help decrease the co-precipitated impurities e) Remove the excess dimethylglyoxime d) Decrease the weight of metal-chelate e) Positive error in the weight of the metal-chelate
كلية العلوم Q34) Experiment 10: Gravimetric Determination of Nickel In the gravimetric determination of nickel by precipitating as bis (dimethylgloximato)-nickel(II), the effect of mistakably using 50% alcohol for washing the precipitate instead of 30% is: a) Washing with 50% alcohol will help to get denser mass for the precipitated chelate making it easier to be filtrated b) Using 50% alcohol will help decrease the co-precipitated impurities e) Remove the excess dimethylglyoxime d) Decrease the weight of metal-chelate e) Positive error in the weight of the metal-chelate
Chemistry
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Chapter1: Chemical Foundations
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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:كلية العلوم
Q34) Experiment 10: Gravimetric Determination of Nickel
In the gravimetric determination of nickel by precipitating as bis
(dimethylgloximato)-nickel(II), the effect of mistakably using 50% alcohol
for washing the precipitate instead of 30% is:
a) Washing with 50% alcohol will help to get denser
mass for the precipitated chelate making it easier to be filtrated
b) Using 50% alcohol will help decrease the co-precipitated impurities
e) Remove the excess dimethylglyoxime
d) Decrease the weight of metal-chelate
e) Positive error in the weight of the metal-chelate
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