FINAL- ACS EXAM STUDY
GUIDE. GRADED A+.
QUESTIONS AND 100%
VERIFIED ANSWERS. LATEST
2025/2026 UPDATE
ppm - Ans✔✔-(grams analyte/grams sample)x10^6
Molarity - Ans✔✔-moles analyte/liter of solution
Volume Percent - Ans✔✔-(volume solute/volume soution)x100
Volume ppm - Ans✔✔-(volume solute/volume solution)x10^6
kilo- - Ans✔✔-10^3
deci- - Ans✔✔-10^-1
,centi- - Ans✔✔-10^-2
milli- - Ans✔✔-10^-3
micro- - Ans✔✔-10^-6
nano- - Ans✔✔-10^-9
pico- - Ans✔✔-10^-12
femto- - Ans✔✔-10^-15
weight percent - Ans✔✔-(grams analyte/grams sample)x100
ppt - Ans✔✔-(grams analyte/grams sample)x10^3
ppt simplified - Ans✔✔-gram analyte/liter solution
ppm simplified - Ans✔✔-mg analyte/liter solution
ppb simplified - Ans✔✔-micrograms analyte/liter solution
pptr simplified - Ans✔✔-nanograms analyte/liter solution
, buoyancy correction - Ans✔✔-m=(m'(1-(air density/weight density)))/(1-(air
density/object density))
accuracy - Ans✔✔-closeness of the mean to the "true value"
precision - Ans✔✔-reproducibility of individual measurements
Uncertainty in Addition/Subraction - Ans✔✔-e=sqrt(ex1^2+ex2^2+ex3^2+...)
Uncertainty in Multiplication/Division - Ans✔✔-
e=y*sqrt((ex1/x1)^2+(ex2/x2)^2+(ex3/x3)^2+...)
Significant Figures in Logarithms and antilogarithms - Ans✔✔-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) - Ans✔✔-four significant figures, so
you will need four decimal places in your answer
pH - Ans✔✔--log[H3O+]
[H3O+] - Ans✔✔-10^-pH
Absorbance - Ans✔✔--log(transmittance)