calorimeter problem
Post on 30-Dec-2015
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A coffee-cup calorimeter is used to measure the heat exchanged when the following reaction is performed : Pb(NO 3 ) 2 + 2 NaI ( aq ) → PbI 2 (s) + 2 NaNO 3 ( aq ) Specifically… - PowerPoint PPT Presentation
TRANSCRIPT
A coffee-cup calorimeter is used to measure the heat exchanged when the following reaction is performed :
Pb(NO3)2 + 2 NaI(aq) → PbI2(s) + 2 NaNO3(aq)
Specifically…A 6.00-gram sample of sodium iodide is added to 200 mL of a 0.22 M lead(II) nitrate solution. Before the solid is added, the solution has a temperature of 22.6˚C. The temperature is recorded to be 24.2˚C when the reaction is complete.
Use this information to determine the ΔHrxn. Assume that the specific heat and density of the mixture are the same as that for pure water.
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