Gradebook O 4/21/2017 11:55 PM A 1/2 4/19/2017 09:20 AM Print calculator Periodi
ID: 515903 • Letter: G
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Gradebook O 4/21/2017 11:55 PM A 1/2 4/19/2017 09:20 AM Print calculator Periodic Table Question 1 of 1 Map Sapling Learning Write the balanced equation for the reaction of aqueous Pb(CIO3)2 with aqueous Nal. Include phases Pb (CIO,), (aq)+2 Na a q PbL (s) Nacio, (aq) What mass of precipitate will form if 1.50 L of highly concentrated Pb(CIO3)2 is mixed with 0.600 L of 0.200 M Nal? Assume the reaction goes to completion. Number 20.7 There is a hint available! ing on the divider bar again to hide the hint. Close A Previous Give Up & View Solution Check Answer Next Exit O HintExplanation / Answer
according to the balanced equation 1 mole Pb(ClO3)2 reacts with 2 moles of NaI to give one mole PbI2
MOLARITY X VOLUME = NO.OF MOLES
0.600 L X 0.200 M NaI = 0.12 MOLES
as reaction goes to completion no.of moles of PbI2 precipitated = 0.6
no.of moles = mass of compound / molar mass of compound
mass of compound = no.of moles x molar mass
= 0.6 x 461
= 276.6g
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