What volume, in L, of 0.100 M Pb(NO3)2 is required to react completely with
45.6 mL of 0.225 M HCI?

Pb(NO3)2 + 2 HCI => PbCl2 + 2 HNO3

0.0752
0.0312
0.0523
0.103

0.103 litre is the volume of 0.100 M Pb(NO3)2 is required to react completely with  45.6 ml of 0.225 M HCI.

Explanation:

Balance equation for the reaction:

Pb(NO3)2 + 2 HCI => PbCl2 + 2 HNO3

Data given:

Volume of Pb(NO3)2 V1 = ?

Molarity of Pb(NO3)2 M1= 0.1 M

Volume of HCl V2 = 45.6 ml

molarity of HCl  M2 = 0.225 M

Using the formula for titration reaction between Pb(NO3)2 + 2 HCI

M1V1 = M2V2

V1 =

   Putting values in the equation:

V1 =

    = 102. 6 ml

The nearest result from the options is 103 ml, so the volume of Pb(NO3)2 used is 103 ml.

Volume in litres will be converted by dividing 103 ml by 1000

The result is 0.103 litre is the volume of lead (II) nitrate.

d.

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