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How much heat is required to convert 30.0 g of ethanol at 28 C to the vapor phase at 78 C ?additional info:Ethanol (C2H5OH) boils at 78 C. Its density is 0.789 g/mL. The enthalpy of vaporization is 38.56 kJ/mol . The specific heat of liquid ethanol is 2.3 J/g-K.
use the chemical reactions shown below to answer the following question.io3- aq 5 i- aq 6 h aq rarr 3 i2 aq
calculate the change in ph caused by adding 10.0 ml of 2.24-m hcl to 370. ml of each of the following solutions. awater
You place ethanol of 100 grams and water of 100 grams in a refrigerator. both are at room temperature Initially,. Determine which of the two liquid samples will cool faster and also explain why this happens.
Provide the Mechanism when 50% Methanol/Water solution is used in simple distillation to extract the Methanol
Write balanced molecular, ionic and net ionic equations for each reaction that occurred in experiment
Two volatile liquids (A and B) form an ideal mixture at 300.0K which just begins to boil at a pressure of 0.3000 atm. The vapor pressure of pure component A is 0.5000 atm and the vapor pressure of pure component B is 0.2000 atm
If it takes 1.0 gram of solid NaOH (a strong base) to change the pH of a solution containing a strong acid from 1 to 2, how much solid NaOH (in g) would be needed to change the pH of this solution from 2 to 3? You may assume that there is no chang..
verify the law of multiple proportions for an element X, which forms oxides having percentages of X equal to 77.4%, 63.2%,69.6% and 72.0%
The nitration of toluene gives o- and p-nitrotoluene as the major products
Describe how a distillation works: how can you separate out things with it? which of the functional groups could you easily react via organic reactions to create different compounds
A single sp^3 hybrid orbital has a) one lobe b) two lobes of equal size c) two lobes of unequal size d) four lobes of equal size
The label claims this solution is 3.0 % (w/w); that is there are 3.0 grams of H2O2 in every 100 grams of solution. What is the molar concentration of this solution. Assume a density of 1.00 g mL
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