Unit 5 Practice Test (Flashcardizz)

Front

What is an empirical formula?

Back

An empirical formula is the simplest whole-number ratio of moles of elements in a compound.

Front

How do you calculate the percent yield?

Back

Percent yield = (Actual yield / Theoretical yield) x 100.

Front

What is the value of Avogadro's number?

Back

Avogadro's number is 6.02 x 10^23, which represents the number of atoms or molecules in one mole of a substance.

Front

What is the theoretical yield?

Back

The theoretical yield is the maximum amount of product that can be produced from a given amount of reactants, based on stoichiometric calculations.

Front

What is the actual yield?

Back

The actual yield is the amount of product that is actually obtained from a chemical reaction.

Front

How do you determine the limiting reactant in a chemical reaction?

Back

The limiting reactant is the reactant that is completely consumed first, limiting the amount of product formed.

Front

What is the balanced equation for the reaction of SO2 and PCl5?

Back

SO2 + PCl5 → SOCl2 + POCl3.

Front

If 16.2 g of SO2 reacts with 13.7 g of PCl5, how much SOCl2 is produced?

Back

7.87 g of SOCl2 is produced.

Front

What is the significance of a balanced chemical equation?

Back

A balanced chemical equation shows the conservation of mass, indicating that the number of atoms of each element is the same on both sides of the equation.

Front

What is stoichiometry?

Back

Stoichiometry is the calculation of reactants and products in chemical reactions based on the balanced equation.