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When initial concentration of SO3(g) is 0.128 M, concentration of oxygen gas at equilibrium is found to be 0.0130 M. Compute Kc for this reaction.
Find out amount of nitrogen and oxygen (in grams) in cup (236 mL) of water under atmospheric pressure of 760 mmHg, supposing that air is 80% N2 and 20% O2.
For solvents below with their value for Kb (in parenthesis). If solute is added to each of solvents to a 1.0 m concentration, which solvent would show largest change in boiling point?
A 100 mL solution of 0.5 M NaOH is added to 100 mL solution of 0.5 M H2SO4. Find out the pH of solution. (pKa1 < 0, pKa2 = 1.96). Write any essential assumptions.
What critiera use to categorize organisms as belonging to one "species" compared to another. What characteristics do all "vertebrates" share?
What mass of CO2 do you introduce into earth's atmosphere by completely burning one tank of gasoline in the automobile?
The two half-cells are connected with the salt bridge of saturated KNO3. Find potential of this cell at 35.0°C? Find K value for net cell reaction at 35.0°C?
Write some of the causes of dehydration? Define diuretic and include two examples. Write some ways to counter effects of diuretics in body?
About 75% of average adult body's weight is comprised of water alone. Write signs and symptoms of dehydration? How dehydration can be treated and prevented?
Compound P binds with X to form complex PX. Create the Scatchard plot of ΔA/*X+ versus ΔA to find equilibrium constant K for binding event.
The unknown sample of tap water as analyzed 5 hours after above calibration data was collected. E measured was 341.0 mV. Determine the concentration of F-in the tap water sample?
Describe shape of titration curve obtained for the analysis. What does curve tell you about ability of analyte, titrant and product to absorb light at wavelength used for this titration?
The following cell potentials when using platinum indicator electrode and silver-silver chloride reference electrode. Use Gran plot to find out concentration of Fe2+in this sample.
Unknown solution contains only two absorbing species thymol blue and methylthymol blue. Compute concentration of thymol blue and ethylthymol blue in unknown sample.
Then instead a phosphorolysis, ALL glucose was released from glycogen by hydrolysis. How does the number compare to the 30 ATP?
Write the balanced equation, then find out how many grams of sulfuric acid can be produced if 916.0 grams of water react.
Compute theoretical and percent yields if 934 grams of sucrose (C12H22O11) react and 493 grams of ethanol (C2H5OH) are really produced.
Write balanced equation and find out how many moles of nitrogen are required to react with 8.37 moles of hydrogen.
When this enters limestone (CaCO3), it dissolves limestone, sometimes producing caves. It 804 kg of calcium hydrogen carbonate is formed, how many kg of limestone were dissolved?
The balloon is presently filled with air at the volume of 8.0L. You heat balloon to double its original temperature in Celsius. Will the balloon pop?
Consider the gas at 1.00 atm in 5.00 L container at 20OC. What pressure does gas exert when transferred to volume of 3.53 L at 43OC?
A sample of helium gas occupies 11.6L at 23OC and 0.956 atm. What volume will it occupy at 40oC and same pressure?
How many liters of NO2, at STP, are formed? If 100.0 g of ammonium nitrate decomposes at 450 oC, how many liters of gaseous products would be produced?
Determine the original pressure of gas, in atmospheres, if this action decreases sample pressure to 3.00 atm?
A sample of nitrogen dioxide gas has volume of 1.50 L at 23 oC. What volume, in L, will gas occupy at 123 oC, if pressure is held constant?