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An equilibrium mixture of so2 o2 and so3 gases at 1500k is determined to consist of 0.244 mol/L SO2, 0.172 mol/L and 0.56 mol/L SO3. What is the equilibrium constant for the system at this temperatu
What mass of glucose C6H12O6, would be required to prepare 5.000 X 10^3 L of a 0.215 M solution
Determine the average atomic mass of helium, which has two isotopes having atomic masses 4.0026 amu and 3.0160 amu. The relative abundance of the two isotopes is 99.9999 percent and 0.0001 percent, re
A gas cylinder contains 0.722 L of hydrogen gas at a pressure of 10.6 atm. If the gas is used to fill a balloon, at a pressure of 0.96 atm, what is the volume of the filled balloon?
The osmotic pressure of the solution is 3.78{atm} at 298 {K}. What is the percent by mass of glucose in the sample? What is the percent by mass of sucrose in the sample?
What is the geometric shape of ONOH and what is its' bond hybridization?
Calculate the volume of water that is released upon its complete metabolism to CO2 and water, taking into account any oxidative phosphorylation that might occur. Show reasoning!
It has one pair of electrons in its only electron orbital (or shell), 1s. Why is hydrogen more likely to form H2 than helium is to form He2?
Write the formula and name of the conjugate acid for each of the following bases:
What is the name of the product for the aldol condensation of piperonal and acetophenone?
What is the temperature of a flame from a bunsen burner that has been on for 10 to 15 min?
Using the same sample of gas ( = 275 , = 43 ), we wish to change the pressure to 2750 with no accompanying change in volume or amount of gas.
Construct a rough plot of pH versus volume of added base for the titration of 50 mL of 0.070 M HCN with 0.075 M NaOH. Ka = 4.0*10-10 for HCN
Draw the structural formula of the aldehyde produced when {rm CH}_{3}-{rm CH}_{2}-{rm CH}_{2}-{rm CH}_{2}-{rm CH}_{2}-{rm OH} is oxidized:
A 1.20x10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.400. What should be the ma
A 44.2 L sample of a gaseous hydrocarbon, measured at 1.00 atm pressure and 25 C is burned in excess oxygen, liberating 2.55x10^3 kj of heat at constant pressure. What is the identity of the hydroca
How do you write a spontaneous net redox reaction for a copper strip is placed in silver (I) acetat
A solution containing 29.50{mg} of an unknown protein per 20.0{mL} solution was found to have an osmotic pressure of 3.70{torr} at 24 degree Celsius. What is the molar mass of the protein?
What are the steps to writing a precipitate reaction with lead(II) nitrate and potassium chromate
A 420 N uniform rectangular sign 4.00 m wide and 3.00 m high is suspended from a horizontal, 6.00-m-long, uniform, 90-N rod as indicated in the figure below. The left end the rod is supported by a h
The pKb of ammonia solution, NH3(aq) is 4.76. A buffer solution contains NH4Cl and NH3, has a pH of 9.45, and a total ammonia concentration (all forms) of 0.400 M. What is the concentration of NH4+?
Why is it unwise to begin addition of the solution of methyl benzoate to the Grignard reagent before the latter has cooled to room temperature and then been placed in an ice-water bath?
Calculate the concentrations of Fe3+, SCN -, and FeSCN2+ in a solution that is initially 3.0 M FeSCN2+.
What magnitude of current is required to produce 1.1 kg of sodium metal in one hour?
Arrange the following compounds in order of increasing reactivity toward attack of a Grignard reagent. Explain the basis for your decision, making use of mechanisms where needed.