ANALYTICAL CHEMISTRY FINAL- ACS EXAMCOMPREHENSIVE Q&A FOR CERTIFICATION SUCCESS 2026

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ANALYTICAL CHEMISTRY FINAL- ACS EXAM-
COMPREHENSIVE Q&A FOR CERTIFICATION
SUCCESS 2026


ppm - correct-answer -(grams analyte/grams sample)x10^6




Molarity - correct-answer -moles analyte/liter of solution




Volume Percent - correct-answer -(volume solute/volume soution)x100




Volume ppm - correct-answer -(volume solute/volume solution)x10^6




kilo- - correct-answer -10^3




deci- - correct-answer -10^-1

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centi- - correct-answer -10^-2




milli- - correct-answer -10^-3




micro- - correct-answer -10^-6




nano- - correct-answer -10^-9




pico- - correct-answer -10^-12




femto- - correct-answer -10^-15




weight percent - correct-answer -(grams analyte/grams sample)x100




ppt - correct-answer -(grams analyte/grams sample)x10^3

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ppt simplified - correct-answer -gram analyte/liter solution




ppm simplified - correct-answer -mg analyte/liter solution




ppb simplified - correct-answer -micrograms analyte/liter solution




pptr simplified - correct-answer -nanograms analyte/liter solution




buoyancy correction - correct-answer -m=(m'(1-(air density/weight density)))/(1-
(air density/object density))




accuracy - correct-answer -closeness of the mean to the "true value"




precision - correct-answer -reproducibility of individual measurements

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Uncertainty in Addition/Subraction - correct-answer -
e=sqrt(ex1^2+ex2^2+ex3^2+...)




Uncertainty in Multiplication/Division - correct-answer -
e=y*sqrt((ex1/x1)^2+(ex2/x2)^2+(ex3/x3)^2+...)




Significant Figures in Logarithms and antilogarithms - correct-answer -the number
of significant figures in the log should equal the number of digits in the mantissa




How many significant figures in log(205.5) - correct-answer -four significant
figures, so you will need four decimal places in your answer




pH - correct-answer --log[H3O+]




[H3O+] - correct-answer -10^-pH




Absorbance - correct-answer --log(transmittance)