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Problem- A 30.0-mL volume of 0.50 M CH3COOH (Ka=1.8x10^-5) was titrated with 0.50 M NaOH. Calculate the pH after addition of 30.0 mL of NaOH
Please take care to reply the question as mark are evenly granted for each point
Calculate the final temperature of 39 of ethanol initially at 14 upon absorption of 698 of heat. (density of ethanol =0.789 )
Derive a rate law for the exothermic reaction 2O3 ? 3O2 based on the following mechanism and draw the corresponding reaction-profile diagram.
a police officer is driving due north at a constant speed of22 ms relative to the ground when shenotices a truck on the
Calculating the Equivalent Weight of an Unknown Substance, An unknown organic carboxylic acid, mp = 139-141 degrees Celsius, is burned with a yellow, sooty flame. The sodium fusion test showed that nitrogen was present.
Calculate the energy of attraction (in eV) between a cation with a valence of +2 and an anion with a valence of -3,
once released into the atmosphere the so2 is likely to react with oxygen to form so3. what can happen next if the so3
If a bottle of nail polish remover contains 151 g of acetone, how much heat would be released by its complete combustion?
Problem- calculate delta G for the following reactions (use textbook to find the values)--- I have provided the delta H, S, and G values for you.
determined the percent Co by converting your product into a blue-violet colored Co complex and measuring the absorbance in the Spec 20 instrument. What is the formula of this blue-violet complex?
Naturally occuring chlorine has two isotopes, Cl-35, which has an atomic mass of 34.969 amu and Cl-37. If the average atomic mass of chlorine is 35.46 amu and its natural abundance is 75.53%,
Calculate the pH of a buffer solution made by adding .83 g of sodium acetate trihydrate [(NaC2H3O2)-3 H20] to 50 ml of .100 M acetic acid
Could you please explain to me the purpose and what's happening when we add the MTBE and then the NaHCO3? I know it has to do something with getting rid of carboxylic acid? and then getting rid of water
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