Chemical CalculationsD. Van Nostrand Company, 1923 - 276 páginas |
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... expressed , i.e. , x : y = a : b , but to have him at once set down his mathematical expression in a form for immediate solution . The algebraic method has been extensively employed and the treat- ment of indirect analysis and the ...
... expressed , i.e. , x : y = a : b , but to have him at once set down his mathematical expression in a form for immediate solution . The algebraic method has been extensively employed and the treat- ment of indirect analysis and the ...
Página 1
... expressed , but if these weights are used to determine the weight of an object , the result is approximate only , and depends upon the accuracy with which the weights are calibrated , the sensitiveness of the balance and other ...
... expressed , but if these weights are used to determine the weight of an object , the result is approximate only , and depends upon the accuracy with which the weights are calibrated , the sensitiveness of the balance and other ...
Página 3
... expressed to three decimal places , a maximum apparent error of ± 0.0005 g . may be assumed which gives a percentage error in this factor of ± 0.0005 203.754 X 100 = ± 0.00025 % . Likewise the percentage of iron in the sample is given ...
... expressed to three decimal places , a maximum apparent error of ± 0.0005 g . may be assumed which gives a percentage error in this factor of ± 0.0005 203.754 X 100 = ± 0.00025 % . Likewise the percentage of iron in the sample is given ...
Página 7
... expressed in tenths in the ordinary notation . In order to keep the result of the division of the unit factors expressed in the system of notation by powers of ten , I must be deducted from the result of algebraically subtracting the ex ...
... expressed in tenths in the ordinary notation . In order to keep the result of the division of the unit factors expressed in the system of notation by powers of ten , I must be deducted from the result of algebraically subtracting the ex ...
Página 8
... expression then becomes : X = 1.308.101 2.007.103 = 6.518.10-3 = 0.006518 . Another method sometimes employed , especially with decimals in which a number of zeros follow the decimal point before the first sig- nificant figure is ...
... expression then becomes : X = 1.308.101 2.007.103 = 6.518.10-3 = 0.006518 . Another method sometimes employed , especially with decimals in which a number of zeros follow the decimal point before the first sig- nificant figure is ...
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Términos y frases comunes
AgCl ammonia amount analysis approximate aqueous vapor atomic weight barium sulphate barometer boiling point bromine CaCO3 calcium Calculate the percentage Calories carbon dioxide cent Chem chemical coefficient of expansion compound constant contains corresponding cubic centimeter degrees Baumé Density of water determined element equation equivalent factor flask formula freezing point gases given gram molecule H₂O HNO3 hydrochloric acid hydrogen iodine iron kilogram liquid liter logarithm mercuric oxide mercury methane method mixed acid mixture molecular weight NaCl NaOH nitric acid nitrogen normal solution obtained oleum oxygen percentage composition platinum potassium chloride potassium permanganate pounds pressure ratio reaction relative density salt sample saturated significant figures silver chloride sinker SiO2 sodium carbonate sodium chloride sodium hydroxide specific gravity specific heat standard conditions sulphuric acid Table taken temperature titrated unit volume vacuo valence vapor density water vapor
Pasajes populares
Página 95 - Avogadro's law states that equal volumes of all gases at the same temperature and pressure contain the same number of molecules...
Página 268 - Baume Hydrometers for use with this table must be graduated by the above formula, which formula should always be printed on the scale. Atomic weights from FW Clarke's table of 1901. О - 16. Allowance for Temperature At 10° -20° Be.— 1/30° Be.
Página 9 - The logarithm of the quotient of two positive numbers is found by subtracting the logarithm of the divisor from the logarithm of the dividend. (6) The logarithm of a power of a positive number is found by multiplying the logarithm of the number by the exponent of the power. For, N" = (oT)
Página 106 - (a) Units of Capacity. — The liter, defined as the volume occupied by a quantity of pure water at 4° C. having a mass of 1...
Página 269 - Soc., vol. 57, p. 363. AUTHORITIES — WC FERGUSON; HP TALBOT. This table has been approved and adopted as a standard by the Manufacturing Chemists' Association of the United States.
Página 88 - Marriott, so named after its discoverers, is that the volume of a gas varies inversely as the pressure to which it is subjected.
Página 140 - The atomic weight (also known as the combining weight) of an element is the ratio of the weight of an atom of that element to the weight of an atom of hydrogen. Hydrogen...
Página 58 - Thus, the reduction of the value of the modulus between the melting point of ice and the boiling point of water is...