Organic Chemistry Answers

1)   Suppose the impurity in my sample of impure benzoic acid is salt, and in a 9.8 g sample there is actually 1 gram of salt. If I were to use 160 mLs of water in my recrystallization would it be likely for my recrystallized sample to contain any salt. The solubility of sodium chloride in water is .360 g/mL at 0 0 C and .380 g/mL at 100 0C. Show all your calculations. Remember to consider significant figures in your final answers. Label all units

Could you re do the previous question on how to write a multi step synthesis of ethyl ethanoate starting from ethanol and ethanal with clear notes

How do I determine which of the cycloalkenes are substitution reactions?

For a given enzyme catalyzed reaction, theMichaelis constant is 0.2 mM and the substrate concentration is 1.8 mM. What is the fractional saturation ([ES]/[ET]) of the enzyme under these conditions?

1. In this investigation, you assumed that the heat capacity of your calorimeter was 0 J/°C. Using the accepted value for the heat of this reaction,  ΔH,  and the equation below, find the heat capacity of the calorimeter.
   

–Qreaction = (msolution • csolution • ΔT) + (Ccalorimeter • ΔT)

Suppose that you had added solid sodium hydroxide pellets to hydrochloric acid, instead of adding hydrochloric acid to sodium hydroxide solution. Will the enthalpy change be lower or higher

Condensed of 3,5 dichloro 2 ethyl 1 heptane

what are the major products for the nitration of toluene and why

Consider the following compounds and decide whether the bond in them would be ionic or covalent.

1. kCI

2. F₂

3. PH₃

4. CBr₄

5. BeF₂

Draw 3,4-dimethyl-2-heptanol