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To determine the concentration of Cu+2 in a large sample of water an electrochemical was constructed usingAg+1 (1.0 M) and Ag as the athode and Cu in the CU+2 containing solution as the anode. the cell potental was measure to be .62volts. what is the concentration of Cu+2
If 20.0 mL of 0.12 M cobalt(II) nitrate is reacted with 15.13 mL of 0.097 M sodium phosphate, which of the two reactants will be left over and which will be completely consumed.
calculate the absolute and relative error in terms of the concentration of Pb2+ when the electrodes are used to measure the lead-ion concentration in a solution containing 3.17X10-2 M Pb(NO3)2 and 8.03X10-3 M Cd(NO3)2
Estimate the pH at the equivalence point of an HOAc solution if 25.5 mL of this solution required 37.5 mL of 0.175 M NaOH to reach the equivalence point (Ka = 1.8 x 10-5).
Ttotal ammonia concentration = 0.400 M. determine What is the concentration of NH 4 + ?
What point defects are possible for Al2 O3 as an impurity in MgO? How many Al3+ ions must be added to form each
Write lewis structures for each of the following species. Use expanded octects as necessary.
solution of unknown weak acid is combined with 70 ml of a .25 M strong base, and the final pH of the solution is measured to be 2.99. What is the pKa of the unknown acid?
Determine the total number of double bonds and/or rings for a hydrocarbon
If the specific heat of the salt is 0.663 J/C.g, what is the enthalpy of solution for salt MX if its molar mass is 68.0 g/mol?
What is the freezing point of a solution containing 3.10 grams benzene (78.11 g/mol) dissolved in 32.0 grams paradichlorobenzene
An aqueous solution has a vapor pressure of 84.0 at 50 . The vapor pressure of pure water at this temperature is 92.6 . What is the concentration of in mass percent?
If there are initially 7.21 grams of the compound dissolved in 110.0 mL of water, how many grams will remain in the aqueous layer after extraction with one 30.0 mL portion of ether?
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