A chemistry teacher prepares a solution of silver nitrate with a total volume of 500.0 mL. Each student is instructed to obtain 15.0 mL of the solution and dilute it to a volume of
100.0 mL to which they will add a 5.00 gram strip of copper metal (excess reactant). Each
reaction is allowed to go to completion and the students then separate, wash, dry, and
weigh the silver powder. The average mass collected by the students is 4.21 g.

Ithink 2 is the correct

You would do 1500/4 and the answer is 375

The activity series is shown in the attached picture. if the element is below the other, then you can displace the other. following the activity series as a guide, the reactions are as follows: nickel and aluminum chloride3 ni + 2 alcl₃  → 3 nicl₂ + 2 albarium and copper bromideba + cubr  →  no reaction because cu is less oxidizable than bapotassium nitrate and aluminum3 kno₃ + al  → al(no₃)₃ + 3 ksodium phosphate and zincnaso₄ + zn  → znso₄ + na

The molar mass of a substance is defined as the mass of 1 mol of that substance, expressed in grams per mole, and is equal to the mass of 6.022 × 10 23 atoms, molecules, or formula units of that substance.