Question

Lead(II) nitrate and sodium bromide are mixed together

5 What is the formula mass for

Lead(II) nitrate =

Sodium Bromide =

Product 1 (give name) = Lead (II) bromide =

Product 2 (give name) = sodium nitrate =

Answer 1

Answer:

The reaction is,

                         Pb(NO₃)₂       + 2 NaBr            ----------->    PbBr₂               +        2 NaNO₃

                      Lead(II) nitrate         Sodium bromide            Lead(II) Bromide                    Sodium Nitrate

Formula mass of Lead(II) nitrate = Pb(NO₃)₂ = 331.2 g/mol

Formula mass of Sodium bromide = NaBr = 102.894 g/mol

Product 1 = Lead(II) Bromide  

Formula mass of Lead(II) bromide = PbBr₂ = 367.01 g/mol

Product 2 = Sodium nitrate

Formula mass of Sodium nitrate = NaNO₃ = 84.9947 g/mol