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A Sample of 4.6434g of benzoic acid, C7H6O2, is dissolved in 50.0033 g of camphor. What is the freezing point of the resulting solution? For camphor, Tf= 179.5 C, Kf = 40C/m
The hypothetical element, Bc, has three stable isotopes. The isotopic abundances and masses of the three isotopes are
degrees C are warmed to 100 degrees C. what is the new volume if the pressure remains constant?
How much of the drug substance has to be used (calculate)? B) How much NaCl do you need to add to hace an isotonic preparation?
Compound B gave a positive 2,4-dinitrophenylhydrazine test, but a negative result when treated with the Tollens reagent. However, B did give a positive iodoform test. The 1H NMR spectrum for Compound A showed the following
the water-cyclohexanone-diethyl ether mixture. Explain how the addition of sodium chloride aids in isolation of the cyclohexanone product.
The value of deltaH for the reaction CH3OH (l)---->CO (g) +2H2 (g) is +128.1 kJ? How many kJ of heat are consumed when 5.10 g of co (g) is formed as shown in the equation
determination of the enthalpy for the termal decmmposition of potaassium bicarbonate without ignoring the given mass.
What is the molarity of hydrogen ion in the above sulfuric acid solution if you assume the sulfuric acid ionizes completely? the above sulfuric acid solution is 0.07 M.
During steel formation, why do the following reactions cause the temperature in the converter to increase?
The molar heat of neutralization from hydrochloric acid and sodium hydroxide is -57.3 kJ/mol. use this accepted value to predict the heat evolved
The vapor pressure of CCl3F at 300 K is 856 torr. If 12.0g of CCl3F is enclosed in a 1.0 L container, what mass of liquid will be present
Explain why triethylamine is a weaker base than dimethylamine or methylamine.
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