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Compute concentration of the I- ions in a solution if 4.0mL of 0.30 M KI is added to 4.0mL of 0.45 M NaI and 2.0mL of water.
While performing the experiment you accidently added 4.0mL of water instead of 1.0mL. Explain how this error wouldAffect the time essential for the color to change? Increase, decrease or Unaffected Explain.
In what order would the subsequent proteins be eluted from DEAE cellulose anion exchanger by a rising salt gradient: cytochrome c (pI, 10.6), pepsinogen (pI, 1.0) and myoglobin (pI, 6.8)
Lewis Structure for a Nitrate Ion (NO3-1). Assign the formal charge for the central atom, Nitrogen. What is that formal charge
Compare in your mind 3 different liquids: pure ethanol, a 50% ethanol/water mixture and a 50 % ethanol/methanol mixture. Rank these three liquids in order of increasing Ptotal when each liquid is in equilibrium with its vapor at 25ºC.
Draw a doagram to show the changes in potential energy that occur from the rotation around the C1-C2 bond of 1-bromopropane
Specify the organic solvent and aqueous solutions to be used for the separation. Provide the exact acid-base reaction that occurs during each step of the separation
the mass of the flask is measured when the outside of the flask is wet. outside of the flask is dried before the mass
The good professor accidently grabs the Na2HPO4 bottle. What pH did professor Whoops expect the solution to be. what was the actual pH of the solution as made
Explain how many mL of O2 would be produced by the reaction of 8.03mL of 30.0% H2O2? The barometric pressure (Patm) was 764torr as well as the temperature was 24.0 Celsius. Convert % H2O2 by mass to M of H2O2 after that moles of H2O2 then miles of..
If you have 4.14 g of caffeine dissolved in 61.0 mL of water and the extraction coefficient between H2O and CH2Cl2 is 21.51. How many grams of caffeine will extract into the CH22Cl2 layer if you use 96.9 mL
According to these values, the wavelength differences between lines in the Balmer series become smaller as n becomes larger. In other words, the wavelengths converge toward a minimum value as n becomes very large.
In a constant pressure calorimetry experiment, a reaction gives off 20.8 kJ of heat. The calorimeter contains 150 g of water, initially at 23.4 oC. What is the final temperature of the water. The heat capacity of the calorimeter is negligibly small..
Hydrogen gas will react with oxygen gas to make steam (gaseous water) at 550 K. I mix 5.0 g of hydrogen and 10.0 g of oxygen in a 2 L flask. After equilibrium is established, there is 4.32 g of oxygen remaining. What is the equilibrium constant fo..
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