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A 1.24â€"M solution of KI has a density of 1.15 g/cm3.
a) Calculate the mole fraction of water in this solution, assuming that the KI is completely dissociated.
b) Predict the vapor pressure of water over this solution at 25 °C, assuming complete dissociation of the KI.
c) Predict the freezing point of this solution, assuming complete dissociation of the KI.
d) The freezing point of this solution is measured to be â€"4.46 °C. What percent of the KI is actually
How many grams of F2 are needed to produce 157 g of PF3 if the reaction has a 79.8% yield?
A 100.-L flask contains a mixture of methane (CH4) and argon gases at 25 degrees Celsius. The mass of argon present is 228 g and the mole fraction of methane in the mixture is 0.650. Calculate the total kinetic energy of the gaseous mixture.
What mass of CCl4 will be formed if 1.20 moles of methane react with 1.55 moles of chlorine?
Rate of reaction for 8H2S +4O2 -> 8H2O + S8, if started with 21.35g of H2S and 15.36g of O2. What is the limiting reactant and how much S8 can be produced.
A student added 5.85g of KMnO4 to a beaker containing 150ml of 0.200 M KMnO4 solution. Calculate the molar concentration of the final solution. Assume volume remains constant.
Write the equilibrium constant expression, Kc , for the following chemical reaction.
Which of the following is not a general characteristic of amides?
What is the mole fraction of ethanol in a solution made from mixing 299 grams of ethanol (C2H5OH) and 360 grams of water? (Round your answer to 2 places after the decimal.)
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a 0.331-g sample of aspirin prepared in the lab was dissolved in 95% ethanol and titrated to a phenophthalein endpoint with 16.7 ml of 0.107M NaOH Calculate moles of scetylsalicylic acid present in the aspirin sample ;What mass (g) of scetylsalicy..
Find out the formula of the gas produced if Na 3 P(s) sodium phosphide, is reacted with H 2 O
the total volume of the gas bags of the german dirigible hindenberg, was 2.0 * 10^5m^3. how many grams of H2 would be required to fill them at 20 celcius and 1.00 atm pressure? hint convert m^3>cm^3>mL>L.
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