please help, and thank you in advance.

Fresh asparagus contains about 93 % water and only 2 % protein that is rich in the amino acid asparagine (assumingly responsible for the taste of asparagus). Mr Heston Blumenthal, a British celebrity chef, says that to preserve its flavour, asparagus should be cooked in fat (oil and butter) rather than in water and salt. Using the knowledge you have learnt in this unit, you can scientifically comment on Mr Blumenthal's advice about cooking asparagus. The acidity of asparagine can be studied by titration with sodium hydroxide solution. C4H8N2O3 Using the knowledge on solubility comment on Mr Blumenthal's advice about cooking asparagus with your answers to the following questions.

(a) With reference to the formula above, state and explain what the dominant intermolecular force is between asparagine molecules.

(b) Based on the interaction between the solute and the solvent molecules via their dominant intermolecular forces, state and explain whether asparagine would dissolve significantly in water or in fat.

(c) Suggest and explain the better way to cook asparagus (in water or in fat) so its flavour is not lost during the cooking process. State whether Mr Blumenthal's advice is sound. (a) Identify the functional groups for asparagine, A, B and C.

(b) Given the molecular formula for asparagine is C4H8N2O3 and its molar mass is 132.119 g/mol, clearly show how to calculate the molar mass of asparagine.

(c) Explain why asparagine is classified as an -amino acid.

(d) As an-amino acid, asparagine can exist in three different forms in an aqueous solution depending on the pH of the solution.

Draw three appropriate line bond formulas to show how asparagine exists in acidic solution (pH < 7), in neutral solution (pH = 7) and in basic solution (pH > 7).

Asparagine is a weak acid, its structural formula can be abbreviated as RCOOH, use this format to answer the following questions.

(a) Write a balanced equation (including the physical states) showing that asparagine partially donates a proton, or H+(aq), to water. Note: In a mixture with water, the physical state of asparagine is aqueous so it can be simply expressed as RCOOH(aq).

(b) Write the equilibrium constant expression for the above equation.

(c) Hydrochloric acid is a strong acid that fully dissociates in water. Calculate the pH of a solution containing 0.0200 mol/L HCl.

(d) Asparagine is a weak acid, would the pH of 0.0200 mol/L asparagine solution be the same, higher or lower than your answer above?

Explain your answer. The acidity of asparagine can be studied via a titration with sodium hydroxide solution.

(a) A 1.00 L solution of asparagine was prepared by dissolving 2.65 g asparagine in water. Given the molar mass of asparagine is 132.119 g/mol, calculate the molarity of this solution. Clearly show your work and state the unit.

(b) As a monoprotic acid, 1 mol of asparagine would react with 1 mol sodium hydroxide. How many mL of 0.200 mol/L NaOH solution is required to react with 50.0 mL of asparagine solution prepared above? Clearly show your work and state the unit.

(c) The 0.200 mol/L NaOH solution was prepared from a stock solution of 12.0 mol/L NaOH. How many mL of the stock solution is required to prepare 250. mL of 0.200 mol/L NaOH solution?

Clearly show your work and state the unit. Sodium hydroxide is an ionic compound consisting of sodium cation and hydroxide anion Given the chemical formula of hydroxide, anion is OH, show how to calculate the total number of valence electrons in hydroxide anion.

Explain why the molecular geometry (or molecular shape) of hydroxide anion is linear In a laboratory experiment, the reactivity of sodium is demonstrated by the reaction between pure sodium metal and water. The products of this reaction are sodium hydroxide, hydrogen gas and heat. Often the combination of the latter two products results in a flame.

(a) Write a balanced net ionic equation for the production of sodium hydroxide solution and hydrogen gas from sodium metal and water. Including the physical state for each substance.

(b) The reaction in part (a) is a redox reaction because, during this reaction, there is a change in oxidation states of sodium and of hydrogen respectively. Determine the following (i) the oxidation state of sodium in sodium metal.

(ii) the oxidation state of sodium in sodium hydroxide.

(iii) the oxidation state of hydrogen in water.

(iv) the oxidation state of hydrogen in hydrogen gas. Using the oxidation states in (i) - (iv) above, identify (v) the element that is being oxidised. (vi) the oxidizing agent.

(c) In an experiment, 1.00 g sodium metal (molar mass 22.990 g/mol) was added to an excess amount of water. How many litres of hydrogen gas would be produced at 25 C and 1.00 atm? Clearly show your work and state the unit. Note: The mole ratio for the reaction is 1 mol Na: 0.5 mol H2.