One test for vitamin C (ascorbic acid, C6 H8 O6 ) is based on the reaction of the vitamin with i

step 1 Hi everyone, so in this question, they have given the amount of acerbic acid vitamin C, C6H8O6 i

One test for vitamin C (ascorbic acid, C6 H8 O6 ) is based...

One test for vitamin $\mathrm{C}$ (ascorbic acid, $\mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{6}$ ) is based on the reaction of the vitamin with iodine: $$ \mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{6}(a q)+\mathrm{I}_{2}(a q) \longrightarrow \mathrm{C}_{6} \mathrm{H}_{6} \mathrm{O}_{6}(a q)+2 \mathrm{HI}(a q) $$ (a) A $25.0 \mathrm{~mL}$ sample of a fruit juice requires $13.0 \mathrm{~mL}$ of $0.0100 M \mathrm{I}_{2}$ solution for reaction. How many moles of ascorbic acid are in the sample? (b) What is the molarity of ascorbic acid in the fruit juice? (c) The Food and Drug Administration recommends that $60 \mathrm{mg}$ of ascorbic acid be consumed per day. How many milliliters of the fruit juice in part (a) must a person drink to obtain the recommended dosage?

One test for vitamin $\mathrm{C}$ (ascorbic acid, $\mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{6}$ ) is based on the reaction of the vitamin with iodine:
$$
\mathrm{C}_{6} \mathrm{H}_{8} \mathrm{O}_{6}(a q)+\mathrm{I}_{2}(a q) \longrightarrow \mathrm{C}_{6} \mathrm{H}_{6} \mathrm{O}_{6}(a q)+2 \mathrm{HI}(a q)
$$
(a) A $25.0 \mathrm{~mL}$ sample of a fruit juice requires $13.0 \mathrm{~mL}$ of $0.0100 M \mathrm{I}_{2}$ solution for reaction. How many moles of ascorbic acid are in the sample?
(b) What is the molarity of ascorbic acid in the fruit juice?
(c) The Food and Drug Administration recommends that $60 \mathrm{mg}$ of ascorbic acid be consumed per day. How many milliliters of the fruit juice in part (a) must a person drink to obtain the recommended dosage?

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Key Concepts

Unit Conversions

Unit conversions involve changing quantities from one measurement unit to another, such as converting milliliters to liters or milligrams to grams. Accurate unit conversion is essential in chemical calculations to ensure that all quantities are expressed in compatible units for proper computation.

Stoichiometry

Stoichiometry involves using a balanced chemical equation to determine the quantitative relationships between reactants and products. It allows one to convert from moles of one substance to moles of another using the mole ratios provided by the coefficients in the balanced equation, which is essential for calculating the amount of a reactant used or produced in a reaction.

Molarity

Molarity is a concentration unit defined as the number of moles of solute per liter of solution. It serves as a bridge between the volume of a solution and the number of moles of a compound present, making it crucial for calculating quantities in reactions and titrations.

Analytical Titration

Analytical titration is a laboratory method used to determine the concentration of an unknown solution by slowly adding a titrant of known concentration until the reaction reaches an endpoint. This process relies on precise volume measurements and stoichiometric relationships to accurately calculate the amount of the analyte.

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