1) What is a colorimeter used for? a) Measure absorbance b) Measure temperature c) Measure pressure d) Measure volume 2) Which law relates absorbance to concentration? a) Boyle's Law b) Beer-Lambert Law c) Newton's Law d) Ohm's Law 3) What is the purpose of a blank solution? a) Calibrate the device b) Increase absorbance c) Change color d) Measure temperature 4) What does a calibration plot help determine? a) Unknown concentration b) Solution temperature c) Pressure levels d) Volume of liquid 5) What is the absorbance range for calibration standards? a) 0 to 1 b) 1 to 2 c) 2 to 3 d) 3 to 4 6) Which instrument uses a fixed wavelength? a) Spectrometer b) Thermometer c) Barometer d) Colorimeter 7) What is the first step in using a colorimeter? a) Select filter b) Measure absorbance c) Prepare solution d) Record data 8) What is the role of a filter in a colorimeter? a) Select wavelength b) Measure volume c) Increase pressure d) Change temperature 9) How is concentration determined from a graph? a) Using trend line b) Using color c) Using volume d) Using pressure 10) What should be done before measuring absorbance? a) Use blank solution b) Heat solution c) Shake solution d) Freeze solution 11) What does Beer-Lambert law relate to? a) Absorbance and concentration b) Temperature and volume c) Pressure and volume d) Color and taste 12) What is used to prepare calibration standards? a) Stock solutions b) Pure water c) Solid salts d) Gaseous compounds 13) What is the purpose of a calibration plot? a) Determine concentration b) Measure temperature c) Increase pressure d) Change color 14) What is measured in colorimetry? a) Absorbance b) Temperature c) Pressure d) Volume 15) What is the function of a spectrometer? a) Measure absorbance b) Measure temperature c) Measure pressure d) Measure volume

BTEC Level 3 Applied Science: Colorimetry Quiz

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