Exploring Solution Stoichiometry Concepts

What is a solution in chemistry?

• A homogeneous mixture of solute dissolved in solvent

• A measurement of concentration

• A solid mixture of two substances

• A reaction between two chemical substances

What role does the limiting reactant play in a chemical reaction?

• It increases the reaction rate

• It has no significant role

• It determines the maximum amount of product that can be formed

• It acts as a catalyst

What does a balanced chemical equation provide in stoichiometry?

• The temperature at which the reaction occurs

• The physical states of the reactants and products

• The ratio of reactants to products

• The concentration of the solutions

What is the first step in solving a stoichiometry problem?

• Calculate the molarity of the solution

• Identify the limiting reactant

• Convert known quantities to moles

• Balance the chemical equation

How many moles of magnesium chloride are needed to produce 1 mole of magnesium phosphate?

• 6 moles

• 3 moles

• 2 moles

• 1 mole

What is the molarity of a solution?

• The number of moles of solvent per liter of solution

• The mass of solute per liter of solution

• The volume of solute per liter of solution

• The number of moles of solute per liter of solution

What is the purpose of using Avogadro's number in stoichiometry?

• To convert moles to number of atoms or molecules

• To balance chemical equations

• To determine the molarity of a solution

• To convert grams to moles

What is the theoretical yield of magnesium phosphate when reacting magnesium chloride with potassium phosphate?

• 1.50 grams

• 2.00 grams

• 1.70 grams

• 2.50 grams

What is the significance of the molarity in a stoichiometry problem?

• It determines the pH of the solution

• It measures the viscosity of the solution

• It helps in calculating the moles of solute in a given volume of solution

• It indicates the solubility of the solute

How many milliliters of barium nitrate solution are required to react with 25 mL of 0.350 molar aluminium sulfate solution?

• 93.8 mL

• 50 mL

• 75 mL

• 100 mL