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Calculate Kc for the reaction at 686°C. If we add CO2 to increase its concentration to 0.50 mol/L, what will the concentrations of all the gases be when equilibrium is reestablished?
a sample of carbon dioxide occupies a 2.54 dm^3 container at STP. what is the volume of the gas at a pressure of 150.0kPa and a temperature of 26.0 C?
One mole of an ideal gas is sealed in a 22.4- L container at a pressure of 1.00 rm atm and a temperature of 273 K. The temperature is then increased to 305 K, but the container does not expand. What
Calculate the cell potential after the reaction has operated long enough for the [Cr2+] to have changed by 0.30 M.
Use the data to calculate the average number of moles of ascorbic acid present in the titrated samples? titration of 10.00 mL fruit juice with 2.00X10-3mol/L I2(aq)
What is the molarity of a solution that contains 27.0 of vitamin B1 hydrochloride (molar mass = 337 ) in 210 of solution?
Write an equation for the hydrolysis of glyceryl tripalmitate.
acetic acid is an important ingredient of vinegar. a sample of 50.0 mL of commercial vinegar is titrated against a 1.00 M sodium hydroxide solution. what is the molar conentration of acetic acid pre
Assuming the reaction is first order in sucrose, determine the mass of sucrose that is hydrolyzed when 2.55L of a 0.150 M sucrose solution is allowed to react for 195 minutes.
Suppose you mix aqueous soutions of Pb(CH3CO2)2 and KCI, what is the molecular equation for this reaction? Please provide total ionic equation and net ionic equation for this reaction. And what do y
How much heat in kilojoules is evolved in converting 1.50 mole of steam at 150 deg celsiys to ice at -35.0 deg. celsius? The heat capacity of steam is 1.84 J/g. deg celsius and that of ice is 2.09
Please could you draw the chemical reaction of the reduced MIOX with O2. Also what are the spin states of each iron, and how do they give rise to EPR signals in each state?
A graduated cylinder contains 131 mL of water. A 18.0 g piece of iron (density = 7.86 rm{g/cm^3}) and a 25.0 g piece of lead are added. What is the new water level in the cylinder?
A sample of the compound MSO4 weighing 0.1131 g reacts with barium chloride and yields 0.2193 g BaSO4. What must be the atomic mass of the metal M?
What is the correct number of d electrons associated with the central metal ion in each of the following complexes?
Suppose in Part E, Step 2, a student gets a red solution when 1 drop of phenol red indicator is added to the tube. Which of the following would explain this result? The test tube was dirty and conta
Suppose you have a sample of sodium weighing 11.42 g. How many atoms of sodium are present in the sample?
if a chemist titrates 300.0 mL of NaOH with a 5.0 M solution of NaOH and requires only 3.4 mL of the base to reach the endpoint, what is the concentration of the sulfuric acid?
Discuss the enthalpy and entropy contribution to ?Godiss (change of free energy) for monochloroacetic acid and acetic acid.
Why are acetic acid and monochloroacetic acid weak acids according to thermodynamic parameters, i.e. what do all weak acids have in common? Which is the stronger acid, acetic acid or monochloroacet
0.644 g each of CO, H2O, and H2 are sealed in a 0.987 L vessel and brought to equilibrium at 600 K. How many grams of CO2 will be present in the equilibrium mixture?
Calculate the anticipated pH after 9.0 mL of the standard NaOHJ has been added to the acetic acid solution. concentration of standard NaOH= 0.1 M
Smitty's Smoothies has fixed costs of $1,600 per month. The only variable costs Smitty incurs are for the ingredients and labor needed to produce smoothies. These costs are $1.50 per drink. Smitty s
hexane is an organic solvent that has a density of 0.6603 g/cm 3 at 20 C. If hexane is mixed with water, there is a separation of the two solvents into two layers. Why did this separation occur? whi
if 12.24 moles of O2 react with excess SO2,how many moles of SO3 are formed? use the balance equation above