Freshly precipitated yellow suspension of Pbl2 in one test tube and PbCrO, in the other can be confirmed easily by

Freshly precipitated yellow suspension of Pbl2 in one test tube and Pb

1.	Freshly precipitated yellow suspension of Pbl2 in one test tube and PbCrO, in the other can be confirmed easily by
Answer» Pb(NO 3 ) 2 +2KI→PbI 2 +2KNO 3 The molar MASSES of Pb(NO 3 ) 2 and KI are 331.2 g/mol and 166 g/mol RESPECTIVELY. The MASS of PbI 2 is 461 g/mol.Let X MOLES of Pb(NO 3 ) 2 react with 2X moles of KI to produce X moles of PbI 2 .Total mass of Pb(NO 3 ) 2 and KI that has reacted is 331.2X+2×166×X=663.2X g. The total mass of two was HELD constant at 5.0 g 633.2X=5 X=0.007539 moles.This is the number of moles of PbI 2 obtained. The mass of PbI 2 obtained =0.007539mol×461g/mol=3.4g.The answer to the nearest integer is 3.please mark me as brilliant answer