Hello, Hailey,
We need a balanced equarion to answer this question. Please say if this is the point that you need help on. I'll assume you can balance, but I can explain it better if this is where you want help.
Zn + 2HCl = ZnCl2 + H2
This tells us that we get 2 moles of zinc chloride for every 1 mole of zinc. Now let's find how many moles of zinc are present in 27 grams of the eement. Divide the mass by its molar mass to find moles.
Since we have 0.41 moles of Zn, the balanced equation says we'll produce the same amount of zinc chloride 0.41 moles. Then multiply this times the molar mass of ZnCl2 to convert moles to grams.
I get 56.27 grams, rounded to 2 sig figs woud be 56 grams ZnCl2.
Bob
