Short Answer
Calculate the heat released (kJ)in the reaction of 3.50 g of acetylene (C2H2)and excess hydrogen gas to form ethane gas:
C2H2(g)+ 2H2(g) C2H6(g)
Given:
2C2H2(g)+ 5O2(g) 4CO2(g)+ 2H2O(g), H = -2320 kJ/mol
2C2H6(g)+ 7O2(g) 4CO2(g)+ 6H2O(g), H = -3040 kJ/mol
2H2(g)+ O2(g) 2H2O(g), H = -572 kJ/mol
Correct Answer:

Verified
Correct Answer:
Verified
Q77: Calculate the standard enthalpy of formation of
Q78: If 2Mg(s)+ O<sub>2</sub>(g) <span class="ql-formula" data-value="\rarr"><span
Q79: An endothermic reaction causes the surroundings to<br>A)warm
Q80: Find <span class="ql-formula" data-value="\Delta"><span class="katex"><span
Q83: The total heat of hydration of 1.00
Q84: Given 2Al(s)+ (3/2)O<sub>2</sub>(g) <span class="ql-formula" data-value="\rarr"><span
Q85: Given the specific heat for aluminum is
Q86: The specific heat of silver is 0.235
Q87: Glycine, C<sub>2</sub>H<sub>5</sub>O<sub>2</sub>N, is important for biological
Q119: Heat is<br>A) a measure of temperature.<br>B) a