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The antifreeze in a car was a 50% by weight solution of ethylene glycol C2H6O2 in water. Calculate the boiling point and freezing point of this solution. (for H2O: Kb= 0.52 C/m... Kf=1.86 C/m.
Explain the difference between simple and fractional distillation. What are the differences in glassware used in simple vs. fractional distillation
The ice was poured out into another container leaving a wet, empty beaker that weighed 46.146g. How much ice was poured into the other container?
Metals such as magnesium and zinc react with dilute sulfuric acid to give hydrogen, according to the equation: M (s) + H2SO4 (aq) -------> MSO4 (aq) + H2 (g) When 5.00 g of a mixture of powdered magnesium and zinc were dissolved in diluted sulfuri..
When calculating dilutions using M1V1=M2V2, derive an equation for the error in M2 using propagation of error (partial derivatives).
The empirical formula for acetic acid is CH2O. Its molar mass is 60 g/mol. what the molecular formula is?
the boiling point of a solution containing 10.44 g of an unknown nonelectrolyte in 50.00 g of acetic acid is 159.2degc.
A solution of I2 was standardized with ascorbic acid. Using .1000 g sample of pure ascorbic acid, 23.25 ml of I2 were required to reach the starch end point.
A 10.00 mL aliquot of weak base is titrated with HCl. The equivalence point is reached after 17.21 mL of 0.4332 M HCl has been added. The pH is equal to 10.03 after 5.00 mL of HCl was added. Determine
(The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporization is 40.79 kJ/mol.)
The leaves of a Rhubarb contain high concentrations of diprotic oxalic acid (HOOCCOOH) and must be removed before the stems are used to make rhubarb pie. If pKa1=1.23 and pKa2=4.19, what is the pH of a .0282 M solution of oxalic acid
A solution is prepared by mixing 5.00 grams of compound Z (molar mass is 15.00 g/mol) in 100.0 mL of water. The density of the solution is 1.08 g/mL. Calculate the molarity of the solution.
1 for each of the following syntheses number of steps shown in brackets state what reagents you would use for each step
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