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30 mL of 0.25 M acetic acid are titrated with 0.05 M KOH. What is the volume of KOH needed to reach the equivalence point? Answer A. 0.15 mL B. 150 L C. 150 mL D. 1.5 L
Using the quantities 3 grams of salicylic acid and 6ml of acetic anhydride noted in the macro scale procedure and any other necessary data, calculate the theoretical yield in moles and grams of aspirin.
If 5.50 mol calcium carbide reacts with an excess of water, how many moles of acetylene will be produced.
The absorbance of a blank solution prepared in the same manner was 0.025. The molar absorptivity of the copper complex is 7.90 x 103 L.mol?1.cm?1. Calculate the weight percent copper in the rock sample
Determine the cell reaction, the standard cell potential (E0cell) and the half-cell that acts as the cathode for the voltaic cells composed of the following half-cells.
Calculate the pH of a solution in which the concentration of the hydronium ion is 2.0 x 10^-4 M.
Describe clearly why a single indicator solution in only useful for measuring pH over a rather narrow range. Use a specific indicator of solution
Determine the equilibrium constant for the following reaction at 298 K. SO3(g) + H2O(g) ? H2SO4(l) ?G° = -90.5 kJ
based on the experament of bromination of acetinilde how many equivalents of CAN of 0.00555 moles relative to acetanilide moles of 0.00381 show your calculation
The falling down of a piece of chalk (when the hand holding it is taken off) is an energy-controlled process, because there is no change in its entropy in the process.
The carbon-14 in a living organism is constant until the organism dies, after which carbon-14 decayss with first order kinetics and a half life of 5730 years. Suppose a bone from an ancient human contains 19.5%of the C-14 found in living organisms..
Which of the following choices is insoluble? Imagine that and are cations and , , and are anions, and that the following reactions occur: Which of the following choices is insoluble? AX AY AZ BX BY BZ
When 20.0 g C2H6 and 60.0 g O2 react to form CO2 and H2O, how many grams of water are formed
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