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Explain what the approximate ranges Eg in eV for different colors--color meanings black, white, or actually having a true color green yellow, blue and so on.
Calculate the approximate molarity of this solution from the volume, percent composition, and density.
If 4.174 atm of COBr2 in a 1.000 L reaction vessel at 425K partially decomposed such that the equalibrium mixture had a total equalibrium pressure of 5.51 atm.
Determine How many grams of NaOCl are in the solution if the percent by mass of the solute sodium hypochlorite, NaOCl, is 3.62%.?
How many different types of resonance structures can be drawn for the ion SO32.
The Delta H for this reaction is 54.8 kJ. How much energy would be absorbed if 24.7 g of NH_4Cl reacts?
In the balanced molecular equation for the neutralization reaction between phosphoric acid and potassium hydroxide, the products are: a. 3H2O b. K3PO4 + 3H2O c. KPO4 + H3OH d. K+(aq) + PO43-(aq) + 3H+ + 3OH-
Explain how the rate of the forward reaction compares to the rate of the reverse reaction at equilibrium
What is the purpose of a hot filtration in a recrystallization. When would a hot filtration step not be necessary or useful in a purification by recrystallization? What experimental observation of the hot solution would let you know that it was no..
You want to convert 5 mL of 3-methyl-2-butanol to 3-methyl-2-butene by an acid catalyzed dehydration. In order to finalize the experimental details, you look up the physical constants in the CRC Handbook and find the following data regarding boili..
what mass of magnesium is required to produce enough gas to exert a partial pressure of .50 atm in a 50.0 mL flask at a temperature of 25.0 degrees celcius?
suppose the capacity of your stomach to be 2.00l and its ph to e 1.50. how many grams of the antacid sodium bicarbonate
Calculate the change in entropy when 54 ml of hot (95 C) water is added to 90 ml of cold (5 C) water is a closed cup, given that Cp (H2O, l) = 75.5 J/molK
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