Download ABC Formula/Conversion Table and more Cheat Sheet Chemistry in PDF only on Docsity! Effective January 13, 2009 ABC Formula/Conversion Table for Water Treatment, Distribution and Laboratory Exams Alkalinity, as mg CaCO3/L = mL Volume, Sample (50,000) Normality) (Acid mL) Volume,(Titrant Amps = Ohms Volts Area of Circle = (.785) (Diameter2) or (Π) (Radius2) Area of Cone (lateral area) = (Π) (Radius) Height Radius 22 + Area of Cone (total surface area) = (Π) (Radius) (Radius + Height Radius 22 + ) Area of Cylinder (total outside surface area) = [Surface Area of End #1] + [Surface Area of End #2] + [(Π) (Diameter) (Height or Depth)] Area of Rectangle = (Length) (Width) Area of a Right Triangle = 2 (Height) (Base) Average (arithmetic mean) = Terms ofNumber Terms All of Sum Average (geometric mean) = [(X1) (X2) (X3) (X4) (Xn)] 1/n The nth root of the product of n numbers Chemical Feed Pump Setting, % Stroke = FlowMaximum (100%) Flow) (Desired Chemical Feed Pump Setting, mL/minute = min/hr) (60 hr/day) (24 mg/mL) (Liquid, gal/MG) (1,000,000 L/gal) (3.785 mg/L) (Dose, MGD) (Flow, Circumference of Circle = (Π) (Diameter) Composite Sample Single Portion = Flow) (Average Portions) of(Number Volume) Sample (Total Flow) eous(Instantan Degrees Celsius = [(Degrees Fahrenheit - 32) (5/9)] or ( ) 8.1 32F − o Degrees Fahrenheit = [(Degrees Celsius) (9/5) + 32] or [(Degrees Celsius) (1.8) + 32] Detention Time = Flow Volume Note: Units must be compatible. Electromotive Force (E.M.F), volts = (Current, amps) (Resistance, ohms) or E =IR Feed Rate, lbs/day = )percentage decimal (Purity, lbs/gal) (8.34 MGD) (Capacity, mg/L) (Dosage, Effective January 13, 2009 Feed Rate, gal/minute (Fluoride Saturator) = mg/L)(18,000 mg/L)(Dosage, )gal/minute capacity,(Plant Filter Backwash Rise Rate, in/min = (Backwash Rate, GPM/sq ft) (12 in/ft) (7.48 gal/cu ft) Filter Drop Test Velocity, ft/minute = Water Drop, ft Time of Drop, minute Filter Flow Rate or Backwash Rate, gpm/sq ft = ft sq Area,Filter gpm Flow, Filter Yield, lbs/hr/sq ft = ft) sq (Area, hr/day) operation,(Filter 100%) / % (Recovery, lbs/day) Loading, (Solids Flow Rate, cfs = (Area, sq ft) (Velocity, ft/sec) or Q = AV where: Q = flow rate, A = area, V= velocity Force, pounds = (Pressure, psi) (Area, sq in) Gallons/Capita/Day = Population gpd Produced, Water of Volume Hardness, as mg CaCO3/L = mL Volume, Sample (1,000) mL) Volume,(Titrant Only when the titration factor is 1.00 of EDTA Horsepower, Brake (bhp) = )Efficiency Pump (Decimal (3,960) ft) (Head, gpm) (Flow, Horsepower, Motor (mhp) = )EfficiencyMotor (Decimal )Efficiency Pump (Decimal (3,960) ft) (Head, gpm) (Flow, Horsepower, Water (whp) = 3,960 ft) (Head, gpm) (Flow, Hydraulic Loading Rate, gpd/sq ft = ft sqArea, gpdApplied, Flow Total Hypochlorite Strength, % = lbs/gal) (8.34 gal) Needed,Solution ite(Hypochlor 100)( lbs) Required, (Chlorine Leakage, gpd = days Time, gallons Volume, Mass, lbs = (Volume, MG) (Concentration, mg/L)(8.34 lbs/gal) Mass Flux, lbs/day = (Flow, MGD) (Concentration, mg/L) (8.34 lbs/gal) Milliequivalent = (mL) (Normality) Molarity = Solution of Liters Solute of Moles
