Answer to Question #177355 in General Chemistry for mel

Question

Heat of naturalization using measurements probes

Heat of naturalization of HCl with NaOH:

1. temperature of calorimeter and NaOH = 23.00 degree celcius
2. change in temperature (from curve) = 30.00 defree celcius
3. heat gained by the solution (temperature increase X 10.0g X 4.18 J/L-g) = ?J
4. heat gained by calorimeter (temperature increase X heat capacity of calorimeter) = ?J
5. total heat release (#3 + #4) = ?J
6. balance equation for the reaction = ?J
7. moles of HCl in 5.0 mL of 1.0M HCl = ?
8. moles of NaOH in 5.0 mL of 1.0M NaOH = ?
9. moles of water produced (balanced equation) = ?
10. KJ released per mole of water formed (#5 / #9) X 10^-3 = ?KJ/mol

find number 3, 4, 5, 6, 7, 8, 9, and 10.

Answer 1

Heat gained by the solution =$7×10×4.18=292.6$

Moles of HCL $=\frac{5}{1000}×1=5.0×10^{-3}$

Moles of NaOH $=\frac{5}{1000}×1=5.0×10^{-3}$