SN & SI
To convert 8.1 x 10^-2, move
2 to the left
Percent weight per volume
1g of solute in 100mL solution
FDA stands for
Food and Drug Administration
Spectrophotometer does
Measures the amount of light that passes through (is transmitted through) a sample.
778.5mg = ? grams
0.7785g
Convert scientific notation 6.34 x 10^3
6.340
Dilution formula
C1V1=C2V2
Control is
[Answers may vary] Documented process by which validated procedures are consistently followed to eliminate unacceptable deviations from established standards.
Standard curves are
Graphs generated from a series of samples of known concentration.
Molarity equation
moles of substance/volume in liters
The symbol and quantity of mole
Symbol is mol/M. Quantity is amount of substance.
Percent volume per volume
1mL of solute in 100mL solution
Current Good Manufacturing
pH meter is and should be calibrated
Instrument used for measuring the acidity or alkalinity of a liquid. pH meter should be calibrated before each use to produce accurate readings.
NaCl should weigh to make 200mM of 400mL
(Na-23, Cl-35.5)
W= 58.8g x 0.2 moles x 0.4L=
4.68g
Scientific notation for 3000
3.00 x 10^3
Given a stock of 50% glycerol. Need to make 100mL of 5% glycerol. How much stock is needed?
50% x V1= 5% x 100mL V1=5% x 100mL/50% V1=10mL q.s. 100mL final volume
Name 4 of the ten fundamentals
[Answers may vary] Training, Documentation and Record Keeping, Written Procedures, Control and Identification of Materials, Communication, label Controls, Contamination Controls, Change Controls, Maintenance and Calibration, Validation.
Of pH meter: Amount of standards, name of standards, and range of standards
3 standards. Neutral, Acidic and Basic. Neutral is 7.0. Acidic is 4.0. Basic is 10.0.
NaCl should weight to make 2M of 5L solution
(Na-23, Cl-35.5)
W= 58.5g x 2M x 5L=
585.5g
SI unit is
A system of physical units based on the meter, kilogram, second, and mole together with a set of prefixes to indicate multiplication or division by a power of ten.
NaCl should you weigh to make 20% of 200mL solution
(Na-23, Cl-35.5)
Wp=20g/100mL x 200mL=
40g
OSHA does
[Answers may vary] Inspects and examines the workplace. Assure safe and healthy working conditions. Set and enforces standards.
FIIR is and used for
Fourier-transform Infrared Spectroscopy. It is used to analyze food, feed, beverages, fuels and industrial compounds.
175mL of 0.1M sodium monophosphate
(sodium monophosphate- 138g/mole)
138g/mole x 0.1M x 0.175L=
2.145g