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Ethylene glycol, HOCH2CH2OH, is effective as an antifreeze, but it also raises the boiling temperature of automobile coolant, which helps prevent loss of coolant when the weather is hot.
a. What is the freezing point of a 50.0% solution of ethylene glycol in water?b. What is the boiling point of the same 50.0% solution?
A particular brand of gasoline has a density of 0.737 g/mL. How many grams of this gasoline would fill a 15.6 gal tank?
A gaseous mixture contains 407.0 Torr of H2 , 377.5 Torr of N2 , and 83.3 Torr of Ar , calculate the mole fraction, X, of each of these gases . X H2 : number
How many electrons should we expect to see associated with the lowest energy peak in the photolectron spectrum of the element Gallium (Ga)?
Grignard Synthesis of malachite Green Find the theoretical yield for generation of Gringard reagent AND malachite green. Show calculation Here was the procudure
Limestone, CaCo3, when subjected to a temperature of 900 degrees Celsius in a kiln, decomposes to calcium oxide and carbon dioxide. How much heat is evolved or absorbed when one gram of limestone decomposes?
calculate the final temperature of the mixture of 150 g of ice initially at 13.5 celsius and 278 g of water initially at 84.5 celsius
As conjugated dyes get longer, two effects compete. The Equation, ?= 8mcL^2/h(2ni+1) indicates that as ni increases, the absorption wavelength should decrease, but as L increases, the absorption wavelength should increase. Which one wins and why?
Which solution will have the lowest boiling point?
In the reaction 2 C8H18 + 25 O2 ? 16 CO2 + 18 H2O, if the rate of change in the concentration of CO2, ?[CO2]/?t, equals 0.51M/s, what is the value of ?[O2]/?t, the rate of change in the concentration of O2
Write a balance equations for both half-reactions for the redox. combine them to determine the overall balanced
A plot of ln [C] versus time is linear for the reaction C ® D. What is the kinetic order of the reaction. A) first B) one-half C) zero
A patient's blood test shows that she has elevated levels of LDL (low density lipoproteins) at 4.12 mmol/L. Convert this concentration to units of molarity (mol/L)
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