Multiple Choice
How much heat is liberated at constant pressure if 0.834 g of calcium carbonate reacts with 48.9 mL of 0.668 M hydrochloric acid?
CaCO3(s) + 2HCl(aq) CaCl2(aq) + H2O(l) + CO2(g) ; rH° = -15.2 kJ/mol-rxn
A) -0.127 kJ
B) -0.375 kJ
C) -12.7 kJ
D) -0.248 kJ
E) -10.2 kJ
Correct Answer:

Verified
Correct Answer:
Verified
Q20: The standard molar enthalpy of formation of
Q24: If 46.1 g Cu at 11.6
Q25: Which of the following statements is/are CORRECT?<br>1)A
Q26: The thermochemical equation for the combustion
Q27: The energy stored in a fuel is
Q28: A bomb calorimeter has a heat
Q31: Calculate <span class="ql-formula" data-value="\Delta"><span class="katex"><span
Q32: It is relatively easy to change the
Q33: When 66.0 g of an unknown
Q34: CaO(s)reacts with water to form Ca(OH)<sub>2</sub>(aq).If