100mL of 5mol L-1 nitric acid was added to excess copper. What mass of copper reacted? Cu +4HNO3 -> 2NO2 + Cu(NO3)2
The mass of
Step 1. Start with the balanced equation.
Step 2. Calculate the moles of
Step 3. Calculate the moles of
4. Calculate the mass of
Note: The answer can have only 1 significant figure, because that is all you gave for the concentration of the nitric acid.
However, I calculated the answer to two significant figures for you.