a. Sn + 2HCl ---> SnCl2 + H2
b. 5.5 x 0.23 = 1.27 g Sn
moles Sn = g/atomic mass = 1.27/atomic mass Sn = ?. Look up the atomic mass Sn.
mols H2 produced = mols Sn
volume H2 = molsSn x 24 L/mol = ?
c. You will have moles Sn = 1.27 g Sn/atomic mass Sn = ? from above.
The M = moles/L solution you will have ?mols/0.200 L = ?M
20 5.5 g of bronze (an alloy of copper and tin, Cu-Sn) containing 23 % of Sn are dipped in an excess of HCI. a) Write the balanced equation of the occur- ring reaction. b) What is the volume of H2 evolved when the molar volume of the gas is 24 L.mol? c) What is the final concentration of Snt ions produced if the volume of the solution is 200 mL?
1 answer