Answer:
Explanation:
percent yield is ratio of actual yield or experimental yield divided by theoretical yield multiplied by 100 .
percent yield of 93.4 % means , the actual yield is 93.4 % what was expected from the reaction on the basis of given chemical reaction .
If in the experimental process , some sodium hydrogen carbonate is left unreacted due to absence of reactant HCl which is also required to obtain product , the percent yield will be increased if the required HCl is also provided .
Hence the percent yield will be increased if required HCl is made available .
Answer:
Distillation will generate the most cyclohexene.
Explanation:
Let us assume following attached reaction for the synthesis of cyclohexene from cyclohexanol which attains equilibrium after certain time.
As shown in figure the cyclohexanol upon treatment with phosphoric acid undergoes dehydration reaction (removal of water) and produces cyclohexene. On the other hand cyclohexene reacts with water (hydration reaction) and produces cyclohexanol.
Now, if this reaction is allowed in a single flask it will attain equilibrium and will not generate the cyclohexene in high quantity. On the other hand if we apply <em>Le Chatelier's principle</em> ( <u><em>removal of product moves the equilibrium in right direction</em></u>) and distillate cyclohexene (boiling the cyclohexene to convert it into vapors and then collect it after condensation) will move the reaction in forward direction and will allow us to generate cyclohexene in high amounts.
A. 3
From 0 to 6, a solution is acidic. 7 is neutral and from 8 to 14.. is basic
Answer : Option B) Glycerol because it is more viscous and has a larger molar mass.
Explanation : Viscosity is a quantity which is expressed in terms of the magnitude of internal friction in a fluid, as measured by the force acting per unit area resisting uniform flow. In simple words, due to high intermolecular forces of attraction the viscosity is increased, as there will be more resistance between the molecules for flowing.
Usually high molecular compounds have high viscosity. In this question, glycerol has high molecular weight along with high intermolecular forces of attraction between the molecules as compared to water and therefore, has high viscosity.
