A coffee-cup calorimeter having a heat capacity of 472 J/°C is used to measure the heat evolved when the following aqueo

[answerhappygod]

A coffee-cup calorimeter having a heat capacity of472 J/°C is used to measure the heat evolved when the followingaqueous solutions, both initially at 22.6°C, are mixed: 100. g ofsolution containing 6.62 g of lead(II) nitrate,Pb(NO3)2, and 100. g of solution containing6.00 g of sodium iodide, NaI. The final temperature is 24.2°C.Assume that the specific heat of the mixture is the same as thatfor water, 4.184 J/g · °C.
The reaction is
Pb(NO3)2(aq) + 2NaI(aq) →PbI2(s) + 2NaNO3(aq)
a. Calculate the heat evolved(in kJ) in the reaction.
b. Calculate the ΔH (in kJ/mol) forthe reaction under the conditions of the experiment.