Ch 5 review

# Ch 5 review - Q5.112 = Ch 4 Ch 5 Consider two solutions...

This preview shows pages 1–6. Sign up to view the full content.

Q5.112 = Ch 4 + Ch 5 Consider two solutions: 50.0 ml of 1.00 M CuSO4(aq) and the other 50.0 mL of 2.00 M KOH (aq). When the two solutions are mixed in a constant-pressure calorimeter, a precipitate forms and the temperature of the mixture rises from 21.5 deg C to 27.7 deg C. A) Before mixing, how many grams of Cu are present in the solution of CuSO4? B) What is the precipitate?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Q5.112 C) Write complete molecular and net ionic equations for the reaction that occurs upon mixing. D) Calculate ΔHrxn that occurs on mixing. Assume Ccal = 0, total volume is additive, specific heat and density of solution are the same as water.
Forming acetylene Calculate Δ H for the reaction 2 C( s ) + H2( g ) → C2H2( g ) given the following chemical equations and their respective enthalpy changes: Answer: 226.8 kJ

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
Identifying Rxns associated with ΔHf For which of the following reactions at 25°C would the enthalpy change represent a standard enthalpy of formation? For each that does not, what changes are needed to make it an equation whose Δ H is an enthalpy of formation?

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 16

Ch 5 review - Q5.112 = Ch 4 Ch 5 Consider two solutions...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online