reacting mass

• What is the equation to calculate the number of moles for elements?

  Number of moles = mass / relative atomic mass
• What is the equation to calculate the number of moles for compounds?

  Number of moles = mass / relative formula mass
• How do you calculate the mass of magnesium chloride produced?

  Mass = number of moles * relative formula mass
• What is the process to calculate reacting masses in chemical reactions?

  1. Identify the reactants and products.
  2. Write the balanced chemical equation.
  3. Calculate the number of moles of reactants.
  4. Use mole ratios to find moles of products.
  5. Calculate the mass of products using relative formula mass.
• What are the steps to solve a typical reacting mass question?

  • Identify the given mass of a reactant.
  • Calculate the number of moles of the reactant.
  • Use the balanced equation to find moles of product.
  • Calculate the mass of the product using its relative formula mass.