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a) How many liters of ethylene glycol, CH2(OH)CH2(OH), should be added to a car radiator that contains a total of 6.5 L of coolant in order to protect the cooling system from freezing to a temperature of - 20 °C. The density of ethylene glycol is 1.11 g/mL. Assume that the volumes of water and ethylene glycol are additive. b) What is the boiling point of the solution? Why would ethylene glycol be added to the cooling system of a car in Houston?
Calculate the value of heat of vaporization for this liquid Calculate the normal boiling point of this liquid.
A 20.0-L nickel container was charged with 0.889 atm of xenon gas and 1.40 atm of fluorine gas at 400 C. the xenon and fluorine reacts to form xenon tetrafluoride. what mass (g) xenon tetrafluoride can be produce assuming 100 % yield? answer in (g..
Aluminum sulphate is used in sand paper, among other uses. How many g of aluminum oxide dihydrate will be needed to produce 500 g of aluminum sulphate by the (unbalanced) reaction below? Al2O3 •2H2O + H2SO4 Al2(SO4)3 + H2O
Draw three resonance structures for N2O (nitrous oxide) and identify the most "important" resonance structure.
A student determined the calorimeter constant of the calorimeter. The student added 50.00 ml of cold water to 50.00 ml of heated distilled water in a Styrofoam cup the initial temperature pf the cold water was 21.00 degrees Celsius
calculate the approximate volume of a 0.600 mol sample of gas at 15.0 degrees Celcius and a pressure of 1.10 atm.
An unknown radioactive substance has a half-life of 3.20 hours. If 38.7g of the substance is currently present, what mass was present 8.00 hours ago
when a nucleus of 240pu undergoes fission it breaks into two smaller more tightly bound fragments.calculate the binding
If an acid base reaction produces a solution with a pH of 7 at its equivalence point, why does an indicator solution that changes color at either a pH of 5 of 9 work just as well as one that changes at a pH of 7
determine the molecular formula for ibuprofen a common headache remedy. analysis ofibuprofen yields a molae mass of 206
At what volume of added acid is the calculated by working an equilibrium problem based on the initial concentration and of the weak base
For the compound MX, Ksp is 2.00 × 10-11. The anion X- forms the weak acid HX (Ka = 1.8 × 10-5). Calculate the solubility of MX in 10.00 M strong acid.
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