Yeast converts glucose (C6 H12 O6) into ethanol (d=0.789 g / mL) in a process called fermentatio

step 1 So the equation here basically asks us to, the question here more or less, asks us to balance th

Yeast converts glucose (C6 H12 O6) into ethanol (d=0.789 g /...

Yeast converts glucose $\left(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}\right)$ into ethanol $(d=0.789 \mathrm{g} / \mathrm{mL})$ in a process called fermentation. An equation for the reaction can be written as follows: $$\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}(a q) \rightarrow \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(\ell)+\mathrm{CO}_{2}(g)$$ a. Write a balanced chemical equation for this fermentation reaction. b. If $100.0 \mathrm{g}$ of glucose yields $50.0 \mathrm{mL}$ of ethanol, what is the percent yield for the reaction?

Yeast converts glucose $\left(\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}\right)$ into ethanol $(d=0.789 \mathrm{g} / \mathrm{mL})$ in a process
called fermentation. An equation for the reaction can be written as follows:
$$\mathrm{C}_{6} \mathrm{H}_{12} \mathrm{O}_{6}(a q) \rightarrow \mathrm{C}_{2} \mathrm{H}_{5} \mathrm{OH}(\ell)+\mathrm{CO}_{2}(g)$$
a. Write a balanced chemical equation for this fermentation reaction.
b. If $100.0 \mathrm{g}$ of glucose yields $50.0 \mathrm{mL}$ of ethanol, what is the percent yield for the reaction?

Key Concepts

Balanced Chemical Equations

A balanced chemical equation represents a chemical reaction with the same number of atoms of each element on both sides of the equation. This principle of conservation of mass ensures that matter is neither created nor destroyed during the reaction. Balancing equations involves adjusting coefficients so that the total number of atoms of each element in the reactants equals the total number in the products.

Stoichiometry

Stoichiometry is the branch of chemistry that quantifies the relationships between reactants and products in a chemical reaction. By using a balanced chemical equation, one can determine the molar ratios between substances, allowing the calculation of how much product is expected from a given amount of reactant.

Mole Concept

The mole concept is a fundamental chemical measurement that relates the mass of a substance to the number of particles it contains using Avogadro’s number. This allows for the conversion between grams and moles through the substance’s molar mass, which is crucial for stoichiometric calculations in reactions.

Percent Yield

Percent yield is a measure of the efficiency of a chemical reaction, calculated by comparing the actual yield obtained from an experiment to the theoretical yield predicted by stoichiometry. It is expressed as a percentage and provides insight into losses or inefficiencies during the reaction process.

Density

Density is a physical property defined as mass per unit volume. In chemical calculations, density is used to convert between the volume of a substance and its mass, which is particularly useful when quantifying liquids and relating experimental measurements to theoretical calculations.

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