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Consider the following solutions for the next four questions I. 100.0 mL of .50 M (C2H5)3N (Kb = 4.0x10-4) II. 50.0 mL of .30 M HClO4 III. 50.0 mL of .25 M KOH IV. 100.0 mL of .50 M (C2H5)3NHI 1. Calculate the pH of solution I 2. Calculate the pH of the resulting solution when the solutions I and II are mixed together. 3. Calculate the pH of the resulting solution when solutions I, III, and IV are mixed together. 4. Calculate the pH of the resulting solution when solutions I, I, III, and IV are mixed together
A couple of drops of water were accidentally placed on the properly folded filter paper before its mass was measured.
How many grams of CuSO4*5H2O should be dissolved in a volume of 500.0 mL to make 8.00 mM Cu2+?2. An iron ore is analyzed for iron content by dissolving in acid, converting the iron to Fe2+, and then titrating with standard 0.0150 M K2Cr2O7 solutio..
the specific heat of ethylene glycol is 2.42 j/k-g. How many j of heat are needed to raise the temperature of 62.0 g of ethylene glycol from 13.1°c to 40.5°c?
Give the chemical reactions that show why solutions of Al(NO3)3, Zn(NO3)2, and NH4NO3 have the pH values that you found.
1 you react e-27-dimethyl-4-octene with bromine collect product and then perform a second reaction with potassium
What is the new volume of the balloon (in mL) at constant temperature?
a compound of iodine and cesium contains 63.05 g of metal and 67.75 g of nonmetal. how many grams of cesium are in
what are some andor similarities in the type of inhibition caused by heat acid or base and heavy metal ions on enzyme
Why is the 1,4 isomer, 1,4-di-t-butyl-2,5-dimethoxybenzene, the major product in the alkylation of dimethoxybenzene. Would you expect the either of the following compounds to be formed as side products: 1,3-di-t-butyl-2,5-dimethoxybezene or 1,4-d..
a sample of nitrogen has a volume of 630 ml at a temperature of 49 degc. assuming that the pressure is constant what
Question- A butane lighter had a mass of 24.643 grams before lighting and a mass of 24.592 grams after. How many mL of CO2 were produced. Assume STP.
Which separation technique do you think will be fastest, flash chromatography or chromatotron. Explain.
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