Conversion 5

• How many grams of zinc did we add?

  7.3
• What did we immediately cover the copper(ll) sulfate and zinc with?

  watch glass
• did we wait for the blue color to dissapear?

  yes
• What gas did the zinc and copper(ll) sulfate produce?

  hydrogen gas
• What did the absence of bubbles indicate?

  that the zinc was all consumed
• What did this reaction produce?

  solid copper
• What did we do to the reaming liquid in the beaker with the solid copper? And how many times?

  We decanted it 3 times
• What was important not to do while decanting the solid copper?

  loose it
• What did we do after decanting the solid copper?

  labeled and recorded the mass of the filtering paper before putting the copper inside
• Why did we squirt distilled water into the beaker when filtering?

  to get out all the copper
• How did we calculate the percentage of recovery?

  (mass recovered copper/mass original copper) x 100