## Empirical equations and nomography |

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acid aqueous solutions auxiliary equations average axis calc calculated values cent centipoises Chap Chem Chemist-Analyst column compute concentration connecting constants convenient cosh cubic centimeters determined diameter empirical equation equation becomes follows freeness functions Glycerol graduated grams hyperbolic Hyperbolic Functions Illustration index lines interpolated Lagrange formula length line coordinate chart linear logarithmic form logarithmic paper logarithmic scales McGraw-Hill Book Company mercury methanol modulus molal nomograph observed values ordinary coordinate paper Paper Ind parallel axes partial pressure Percentage deviation obs points pounds Prob pulp ream weight rH rH roll satisfactory shown in Fig simultaneous solution sinh slide rule slide-rule smooth curve sodium carbonate solubility specific gravity straight line substituting subtraction sulfur dioxide sulfuric acid summation equations Table XXXVI.—Hyperbolic Functions.—(Continued tanh terpineol thermal conductivity thermal value tion vapor pressure variables various temperatures viscosity width yields zero