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What is the molarity of a solution made from 23.1g of NaNO2 dissolved in enough water to make 500ml solution
In a titration, 0.0 mL of 0.025 M hydrochloric acid is added to 30.0 mL of 0.030 M ammonia. What is the pH of the resulting mixture?
What molarity of aqueous aluminum sulfate solution can be expected to show the same conductivity as 0.030 M CaSO4 at 20,000 units?
For each parameter listed, explain whether or not a change in the parameter will have an effect on the retention time of a compound.
Give the overall balanced reaction, and determine E° for the galvanic cells. Assume that all concentrations are 1.0 M and that all partial pressures are 1.0 atm.
In the emission spectrum of helium, there are strong lines at wavelengths of 447.1 nm, 501.6 nm, and 587.6 nm. Using the Balmer-Rydberg equation, determine the values of nf for each emission.
Using the tools you have at hand (a melting point apparatus and TLC setup), what other data could you collect to test your hypothesis from part a? Give two possibilities.
Determine the molar mass of the nonelectrolyte if the osmotic pressure of the solution = 23.6 atm, also express your answerin g/mol?
Balance the equation below using the smallest whole numbers for coefficients assuming the redox reaction occurs in acid solution. Add water where appropriate
What will be the final temperature of a 437-g sample of water, initially at 15C, after 52.2 kJ have been added to it
The following reaction is not spontaneous at any temperature. Which applies to the system at 298 K? 2C(s) + 3H2(g) --> C2H6(g)
If you dissolved 0.95g of salt in 100ml distilled water, what is the concentration of salt in this solution in g/ml
Using a table of standard reductions, determine what the potential of each reduction below would be versus the S.C.E. a. Ag+ (aq) + e - ? A(s) b. Ni2+(aq) + 2e- ? Ni (s)
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