Calculate the molar heat of vaporization
The vapor pressure of dichloromethane,CH_2Cl_2, at 0 degrees C is 134 mmHg. The normal boiling point of dichloromethane is 40. degrees C. Calculate its molar heat of vaporization.
Expected delivery within 24 Hours
a balloon filled with helium gas has a volume of 762 mL at a pressure of 1atm. The balloon is released and reaches altitude of 6.5km, where the pressure is 0.5atm. Assuming that the temperature has remained the same, what volume does the gas occup
A proposed mechanism for a reaction is. Write the rate law expected for this mechanism. Support your answer.
A certain second-order reaction () has a rate constant of 1.65×10-3 at 27 and an initial half-life of 286 . What is the concentration of the reactant after one half-life?
Determine the theoretical yield if a 125.0g sample of zinc was used. Determine the percent yield if 515.6 g product is recovered.
An aqueous solution that contains 285ppm of potassium nitrate (KNO3) is being used to feed plants in a garden. What volume of this solution is needed to prepare 1.7 L of a solution that is 97 ppm in KNO3?
Using the average initial pH of your acetic acid solutions, and the average molarity of those solutions, calculate a value of Ka for acetic acid. when initial pH is 2.63 and average molarity is 0.06475?
According to the following reaction, how many grams of ammonia will be formed upon the complete reaction of 30.1 grams of ammonium chloride?
When 64.5 g of HCl are allowed to react with 17.6 g of O2, 50.4 g of Cl2 are collected. Determine the limiting reactant, theoretical yield of Cl2 and percent yield for the reaction.
L is allowed to come to equilibrium against a constant external pressure of 8.3 atm at constant temperature. Calculate the work observed for the volume change in the piston (in kJ)
If 69.5 kJ of heat is applied to a 1040. g block of metal, the temperature of the metal increases by 11.4°C. Calculate the specific heat capacity of the metal in J/g°C.
1945961
Questions Asked
3,689
Active Tutors
1441490
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Problem: What are the appropriate registers for workplace text?
Describe the purpose of the balance sheet. What are the major limitations of the balance sheet as a source of information?
Problem: Describe three (3) best practice methods to mentor and coach others.
Explain what activities and actions the youth have to do in order to conjur up measures that will reduce carbon dioxide
Explain why the arts are important to our humanity. Explain how the arts contribute to a culture of diversity.
Problem: What are communication "red flags" that prevent someone from pursuing a relationship (romantic or otherwise) with an individual?
Question: What does it mean to have the "basic ability to describe the dynamic nature of the human communication process"?