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Question- A 0.610 g sample of aspirin prepared in the laboratory is dissolved in 100% ethanol, diluted with water and tite ayes to the phenolphthalein endpoint with 25.0ml of a 0.135 m naoh solution
Here is the problem which I am struggling on, please help me!
measured in a 1.00-cm pathlength cuvette, has an absorbance of 0.321 while the reagent blank in the same cuvette has an absorbance of 0.014. What would be the absorbance reading of these two solutions if measured in a cuvette with 5.00 cm pathleng..
calcualte the precentage error that would result from the use of the ideal gas equation of state for the calculation.
Enough Al2(SO4)3 solid is added to water to prepare 100.0 mL of a 0.150 M solution of aluminum sulfate. What is the concentration of sulfate ion in solution?
The atmospheric pressure in La Grande (683 atmospheric pressure) is significantly lower than that of Portland (760 normal pressure). How would the boiling points of a liquid compare in these two locations? Why?
Without including them in the electronic configuration, please say how many valence electrons are in Mo2+, Pb2+, Cr3+ and Ag+. just a bit confuse with what shells are the outer ones
The volume of a gas dropped from 300 ml to 280 ml when the original pressure of 200 torr was increased. what was the new pressure in kpa if the temperature is held constant
Calculate the pH of each of the following solutions containing two solutes in the concentrations indicated. (a) 0.50 M HOAc (acetic acid), 0.5 M NaOAc (sodium acetate); Ka = 1.8 x 10-5
If the ka for the acid phenol (call it HP) is 1.3 x 10-10, what is the pka of the phenolate ion (P-)
seperate two compounds efficiently, what alternatives would one consider to effect clean separation by distillation?
if a total of 702 mol of NaHCO3 and 2.4 mol of C6H8O7 react, how many moles of CO2 and Na3C6H5O7 will be produced?
What would you weigh if you have pure anhydrous sodium sulfate available instead of the pentahydrate material
Use average bond energies to calculate the energy released when 1 mole of acetylene gas (ethyne, C2H2) reacts completely with O2(g) to form gaseous products. Use the information in the Table of Bond Enthalpies which is in the Chemistry Tables link..
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