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Silver bromide is used to coat ordinary black-and-white
Chapter 5, Problem 68P(choose chapter or problem)
Silver bromide is used to coat ordinary black-and-white photographic film, while high-speed film uses silver iodide.
When \(50.0 mL\) of \(5.0 \mathrm{~g} / \mathrm{L} \ \mathrm{AgNO}_{3}\) is added to a coffee-cup calorimeter containing \(50.0 mL\) of \(5.0 g/L NaI\), with both solutions at \(25^{\circ} \mathrm{C}\), what mass of AgI forms?
Use Appendix B to find \(\Delta \mathrm{H}_{\mathrm{rxn}}^{\circ}\).
What is \(\Delta T_{\text {soln }}\) (assume the volumes are additive and the solution has the density and specific heat capacity of water)?
Equation Transcription:
5.0 g/L AgNO3
25°C
H°rxn
Tsoln
Text Transcription:
50.0 mL
5.0 g/L AgNO_3
5.0 g/L NaI
25°C
Delta H°_rxn
Delta T_soln
Questions & Answers
QUESTION:
Silver bromide is used to coat ordinary black-and-white photographic film, while high-speed film uses silver iodide.
When \(50.0 mL\) of \(5.0 \mathrm{~g} / \mathrm{L} \ \mathrm{AgNO}_{3}\) is added to a coffee-cup calorimeter containing \(50.0 mL\) of \(5.0 g/L NaI\), with both solutions at \(25^{\circ} \mathrm{C}\), what mass of AgI forms?
Use Appendix B to find \(\Delta \mathrm{H}_{\mathrm{rxn}}^{\circ}\).
What is \(\Delta T_{\text {soln }}\) (assume the volumes are additive and the solution has the density and specific heat capacity of water)?
Equation Transcription:
5.0 g/L AgNO3
25°C
H°rxn
Tsoln
Text Transcription:
50.0 mL
5.0 g/L AgNO_3
5.0 g/L NaI
25°C
Delta H°_rxn
Delta T_soln
ANSWER:
Problem 68P
Silver bromide is used to coat ordinary black-and-white photographic film, while high-speed film uses silver iodide.
(a) When 50.0 ml of 5.0 g/L 
(b) Use Appendix B to find 
(c) What is 
Step by step solution
Step 1 of 3
(a) Balanced thermochemical equation for the reactants is given by
From the balanced chemical equation, one mole of
Molar mass of
Mass of
= 0.25 g
Number of moles of
= 0.00147 moles
Molar mass of NaI = 149.9 g/mol
Mass of NaI = 0.05L x 5.0 g/L
= 0.25 g
Number of moles of
= 0.00166
1 mole of
Then 0.00147 moles of
Molar mass of AgI = 234.8 g/ mol
Mass of AgI formed = 234.8 g/ mol x 0.00147 moles
= 0.345 g