Concentration

• How can the concentration of a solution be measured?

  In mol per given volume of solution, e.g., mol/dm³
• What is the relationship between mass of a solute, volume of a solution, and concentration?

  The mass of a solute and the volume of a solution are related through the equation moles = concentration x volume
• How do you calculate moles from mass and molar mass?

  By using the equation mol = mass / molar mass
• How do you find concentration using moles and volume?

  By using the equation concentration = mol / volume
• What must be done to the volume when calculating moles if it is given in cm³?

  You must convert it to dm³ by dividing by 1000
• How can you calculate the concentration of a second solution if the volumes of two solutions that react completely are known?

  By calculating the moles of the first solution and using the mole ratio from the equation
• What is the first step to find the moles of a solution when its volume and concentration are known?

  Use the equation moles = concentration x volume
• What is the final step to find the unknown concentration after calculating moles?

  Use the equation concentration = mol / volume
• What are the steps to calculate the concentration of a solution when given the volumes and concentration of two reacting solutions?

  1. Calculate moles of the known solution using moles = concentration x volume.
  2. Use the mole ratio from the balanced equation to find moles of the unknown solution.
  3. Calculate the unknown concentration using concentration = mol / volume.