Answer:
Measure the mass of the empty beaker and record the value.
Add the measured mass of metal to the beaker and record the total mass.
Add excess acid to the beaker containing the metal and allow the reaction to occur.
Once the reaction is complete, reweigh the beaker containing the reaction products.
Calculate the mass of the reaction products by subtracting the initial mass of the beaker and metal from the final mass of the beaker and products.
mass of reaction products = (final mass of beaker and products) - (initial mass of beaker and metal)
By subtracting the initial mass of the beaker and metal from the final mass of the beaker and products, we can determine the mass of the reaction products without removing them from the beaker. This method ensures that all the products are accounted for and no mass is lost during the reaction.