Chapter 16, Problem 16.32P

(a)

Interpretation Introduction

Interpretation:

The reaction occurs when Sulphuric acid is added to ${\text{KIO}}_{\text{3}}\text{+KI}$ has to be written and the reason why potassium iodide were added to the stock solution has to be explained.  It is essential to measure out 6.0g and $\text{1}{\text{.0 mL of H}}_{\text{2}}{\text{SO}}_{\text{4}}$ exactly has to be given.

(b)

Interpretation Introduction

Interpretation:

The balanced reaction between triiodide and sulphate has to be written.

Concept introduction:

• There is a law for conversion of mass in a chemical reaction i.e., the mass of total amount of the product should be equal to the total mass of the reactants.
• The concept of writing a balanced chemical reaction is depends on conversion of reactants into products.
• First write the reaction from the given information.
• Then count the number of atoms of each element in reactants as well as products.
• Finally obtained values could place it as coefficients of reactants as well as products.

(c)

Interpretation Introduction

Interpretation:

Concentration of sulphite in the wine has to be calculated. The answer should be expressed in mol/L and in $\text{mg}{\text{SO}}_3^{2-}$/L.

Concept introduction:

Molarity (M):

Molarity is one of the concentration unit.  Molarity is defined as number of moles of the solute in one litre of solution.

$\text{Molarity =}\frac{\text{Number of moles of the solute}}{\text{1L solution}}$

(d)

Interpretation Introduction

Interpretation:

Are the results given in the statement significantly different at 95% confidence level has to be identified.