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If 0.5mL of .3% (mass) ethanol is oxidized with 10mL 0.005M K2Cr2O7 , what volume of 0.05M Fe(NH4)2(SO4)2.6H2O is needed to titrate the excess potassium dichromate?
A solution of water (1.86) and glucose freezes at 3.95. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 .
If 5.0 g of H2 are reacted with excess CO, how many grams of CH2OH are produced, based on a yield of 86%?
What volume of 0.300 N NaOH would be required to bring 16.0 mL of distilled water that has a pH 7.00 to a new pH of 12.42?
Which of the following correctly summarizes the exact relationships between the SN values of 2 to 6, the hybrid orbital names, and the predicted geometries for molecules that have hybridized central atoms?
Once, it is important that the level of the elution solvent not drop below the top of the adsorbent why? the absorbent is packed in a liquid chromatography column
what will be the theoretical yield of bromobenzene in given reaction as C6H6 + Br2 → C6H5Br + HBr also find out percentage yield when actual yield of bromobenzene was found 56.7 g?
what is the likely magnitude of the equilibrium constant K? Hydrogen is used as a rocket fuel because it is very light and reacts explosively and completely with oxygen. For the combustion reaction
A lactic acid/lactate ion buffer solution contains 0.29 M hc3h5o3 and 0.80 M C3H5O3-, respectively. The Ka value of lactic acid is 1.4X10^-4. Calculate the pH of this buffer.
explain why one would be higher than the other? I'm confused as to the theory of this lab and need to know exactly why...Thanks! I have this lab next week and can't unnderstand what the concept is.
Calculate P,V and T for initial and final states of each process and produce a plot of the two processes on a P,V diagram. Without resorting to equations, explain why the result for part (b) is greater than or less than the result for part (a).
Assume the temperature of the mixture is chosen so that Kp=0.12. Predict the effect on the partial pressure of SO3 as equilibrium is achieved by using Q, the reaction quotient.
What mass of ethylene glycol must be added to 1615g water to raise the boiling point to 104.3 degrees celcius?
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