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A 2.60-L vessel contained 0.0160 mol of phosphorus trichloride, 0.0115 mol of phosphorus pentachloride, and 0.0903 mol of chlorine at 180°C in an equilibrium mixture. Calculate the value of Kc for the following reaction. PCl3(g) + Cl2(g) PCl5(g)
How many joules are required to raise the temperature of 80g of iron from 20 degrees celsius to 70 degrees celsius?
Calculate the change in enthalpy of this reaction. Specific heat of the solution = 4.184 J/(g oC) State your answer in kJ with 3 significant figures. Don't forget to enter the unit behind the numerical answer. The molecular weight of KOH is 56.2 g..
what is the hybridization of phosphorus in the phosphonium ion (PH4+)
Titration of an oxalate sample gave the following percentages of percent oxalate: 12.28%, 12.54%, and 12.24%. Calculate the average and the standard deviation
The normal boiling point of acetone is 56.5°C. At an elevation of 5300 ft the atmospheric pressure is 630. torr.a. What would be the boiling point of acetone (AHvap = 32.0 kJ/mol) at this elevation?
you have a hydrochloric acidsolution with a pH of 1.8. How many mL of sodium hydroxide with a pH of 11.8 would be used to neutralize 20.0 mL of the acid solution.
what is heat capacity. write a simple procedure for determining the heat capacity of your calorimeter
A quantity of 4.00 102 mL of 0.600 M HNO3 is mixed with 4.00 102 mL of 0.300 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity. The initial temperature of both solutions is the same at 18.76°C. What is the final temperature ..
Sodium methoxide reaction: Pipet 1.65 mL of a 25% (by weight) solution of sodium methoxide in methanol into a 10 mL reaction flask.
"Crossed" or "mixed" aldol condensations are practical for synthesis, if one of the aldehydes (or ketones) has no alpha-hydrogen atoms. Explain.
What quality of heat energy, in J, is required to raise the temperature of 454g of tin from room temperature, 25.0C to its melting point, 231.9C, and then melt the tin at that temperature
Analyzing a new reaction Consider the following elementary steps that make up the mechanism of a certain reaction: 2X -> Y + Z Y + L -> M + Z Part A What is the overall reaction
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