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the indicator that you used in the titration was thymol blue. this indicator changes color at the end point from red (acidic) to yellow at pH 2.0 . suppose you chose phenolphthalein , which changes color at the end point from colorness(acidic) to pink at pH8.5 .Would you need the same , more or less volume of NaOH in the back-titration?
Draw the structure of a compound with the following analytical data: a mw of 72 g/mol, no silver mirror in a Tollen's test, and a yellow precipiate formed in an iodoform test.
Write the structures of the following compoundsa) 2,2-dibromo-3,3-dichloro-5,5-difluoro-6,6-diiodobicyclo{2.2.1}heptane
Determine the empirical and molecular formulas of Ibuprofen has 75.69% C, 8.80%H and 15.51%O by mass and has a molar mass about 206g/mol.
Derive an expression for the instantaneous temperature as a function of the instantaneous pressure, and use it to sketch T/Ti vs P/Pi.
A total of 18.31 mL Ne gas effuses through a hole in a plate in the same amount of time it takes 20.54 mL of another gas to effuse through the same hole under the same temperature and pressure conditions.
how many grams of metallic copper can be obtained when 54.0 grams of Aluminum react wit 319 grams of CuSO4?
A 235mL solution is prepared with 41.8 millimoles of an unknown sodium salt of a deprotonated organic acid (NaX). If the solution has a pH of 8.05, what is the pKa of the acid?
The Ka of a monoprotic weak acid is 7.76 × 10-3. What is the percent ionization of a 0.127 M solution of this acid?
Liquid acetone was placed in a 3.00L flask, then vaporized at 95'C and 1.02 atm. The vapor filling the flask weighed 5.87g. Calculate the molar mass of acetone.
A titration was performed with a solution of 10.00 mL of Ca(OH)2 and 25.00mL of DI water. The endpoint was reached with a 0.03192 M of HCl at a final volume of 11.25 mL.
A sample of gas has a volume of 2 liters at 40 degrees celsius. what volume will the gas occupy at 0 degree celsius.
write a electrn configuration for an octahedral complex, write the electron configuration for [RhCl6]^-3 in terms of MO labels for ground electronic state.
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