Unit 9 - Stoichiometry Part 2 Review

Front

What is Stoichiometry?

Back

The branch of chemistry that deals with the calculation of reactants and products in chemical reactions.

Front

What is the formula for calculating Molarity?

Back

Molarity (M) = moles of solute / liters of solution.

Front

What does a 0.75M solution mean?

Back

It means there are 0.75 moles of solute in every liter of solution.

Front

How do you convert mL to L?

Back

Divide the volume in mL by 1000.

Front

What is a solute?

Back

The substance that is dissolved into the solution.

Front

What is a solvent?

Back

The substance that does the dissolving in a solution.

Front

What is the relationship between moles and grams?

Back

Moles = grams / molar mass.

Front

What is the significance of the coefficients in a balanced chemical equation?

Back

They indicate the ratio of moles of reactants and products involved in the reaction.

Front

What is the enthalpy change in a reaction?

Back

The heat absorbed or released during a chemical reaction.

Front

What does it mean if a reaction is endothermic?

Back

It absorbs heat from the surroundings.