Write the balanced equation for the reaction of aqueous Pb(CIO_3)_2 with aqueous
ID: 952845 • Letter: W
Question
Write the balanced equation for the reaction of aqueous Pb(CIO_3)_2 with aqueous Nal. Include phases. Pb(ClO_3)_2(aq) + NaI(aq) right arrow Pbl_2 + 2NaCIO_3(aq) Incorrect. To write the chemical equation, start by putting Pb(CIO_3)_2(aq)+Nal(aq) on the reactant side. Next write the products by pairing the cation of one compound with the anion of the other compound and vice versa. Finally, balance the equation and put the symbol (aq) after any soluble products and (s) after any insoluble products. What mass of precipitate will form if 1.50 L of highly concentrated Pb(CIO_3)_2 is mixed with 0.550 L of 130 M Nal? Assume the reaction goes to completion.Explanation / Answer
Pb(ClO3)2 + 2 NaI PbI2 + 2 NaClO3
Reaction type: double replacement
Pb(ClO3)2 + 2 NaI PbI2 + 2 NaClO3
Clearly Pb(ClO3)2 is in excess, leaving NaI to be the limiting reactant.
(0.550 L) x (0.130 mol/L NaI) x (1 mol PbI2 / 2 mol NaI) x (461.0189 g PbI2/mol) = 16.48 g PbI2
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