Study guides, Class notes & Summaries

Analytical chemistry ACS Correctly Solved E relative - Answer -(|x1-x(true)|)/x(true) *100 standard deviation - Answer -sqrt((x1-x)^(2)+(x2-x)^(2))/(n-1) relative standard deviation - Answer -(s/x(mean))*100 relative uncertainty - Answer -(abs uncertainty)/measured value How are vol pipets calibrated? - Answer -For last drop to not be forced out TC - Answer -to contain TD - Answer -to deliver Tolerance - Answer -max permissible deviation of measured value propagation of uncertainty add ...

Analytical Chemistry Final- ACS Exam 2024 ppm - Answer -(grams analyte/grams sample)x10^6 Molarity - Answer -moles analyte/liter of solution Volume Percent - Answer -(volume solute/volume soution)x100 Volume ppm - Answer -(volume solute/volume solution)x10^6 kilo- - Answer -10^3 deci- - Answer -10^-1 centi- - Answer -10^-2 milli- - Answer -10^-3 micro- - Answer -10^-6 nano- - Answer -10^-9 pico- - Answer -10^-12 femto- - Answer -10^-15 weight percent - Answer -(grams analyte/grams s...

ACS Analytical Chemistry Exam with Correct Solutions standard deviation (s) - Answer -the square root of the variance % relative standard deviation (%RSD) - Answer -Standard deviation divided by mean times 100 Grubbs test (Gcalc) - Answer -|Questionable value - mean/ std dev| If that is larger than the Gtable value then the value is thrown out. Locate Gtable value based on number of values in data set. Used to define outliers z score - Answer -(x- xavg)/s F Test - Answer -used to compar...

Analytical chemistry ACS Correctly Solved E relative - Answer -(|x1-x(true)|)/x(true) *100 standard deviation - Answer -sqrt((x1-x)^(2)+(x2-x)^(2))/(n-1) relative standard deviation - Answer -(s/x(mean))*100 relative uncertainty - Answer -(abs uncertainty)/measured value How are vol pipets calibrated? - Answer -For last drop to not be forced out TC - Answer -to contain TD - Answer -to deliver Tolerance - Answer -max permissible deviation of measured value propagation of uncertainty add ...

Analytical Chemistry Final- ACS Exam 2024 ppm - Answer -(grams analyte/grams sample)x10^6 Molarity - Answer -moles analyte/liter of solution Volume Percent - Answer -(volume solute/volume soution)x100 Volume ppm - Answer -(volume solute/volume solution)x10^6 kilo- - Answer -10^3 deci- - Answer -10^-1 centi- - Answer -10^-2 milli- - Answer -10^-3 micro- - Answer -10^-6 nano- - Answer -10^-9 pico- - Answer -10^-12 femto- - Answer -10^-15 weight percent - Answer -(grams analyte/grams s...

ACS Analytical Chemistry Exam with Correct Solutions standard deviation (s) - Answer -the square root of the variance % relative standard deviation (%RSD) - Answer -Standard deviation divided by mean times 100 Grubbs test (Gcalc) - Answer -|Questionable value - mean/ std dev| If that is larger than the Gtable value then the value is thrown out. Locate Gtable value based on number of values in data set. Used to define outliers z score - Answer -(x- xavg)/s F Test - Answer -used to compar...

Analytical Chemistry Final- ACS Exam 2024

Analytical chemistryprovides the tools to make qualitative and quantitative measurements of components in complex samples classical methods'wet' gravimetric titrimetric complexometric and redox wet bench modern instrumental methodsspectroscopic, electrochemical chromatographic & electrophoretic Combination methods- used to achieve analytical accuracy slurrysuspention of solid & liquid supernatant liquidliquid above a pack solid

Analytical Chemistry branch of chemistry that deals with separation, identification, and determination of components present in a sample. Also includes coverage of chemical equilibrium and statistical treatment of data. -ex. clinical analysis: blood and urine tests environmental: water purity Forensic: DNA and fiber tests Industrial: drug and metal purity Qualitative Analysis determining what chemical species are present in a sample Quantitative Analysis determining how much of a che...