Ask a New Question
Search
Questions and answers by
LaurenB
Questions (13)
The standard enthalpy of formation of n-octane is -249.95 kJ/mol. Compute the amount of heat liberated when 5.24 g of n-octane
2 answers
1,048 views
A constant pressure calorimeter having a heat capacity of 60.8 kJ/K is used to measure the energy released from burning a
1 answer
624 views
Suppose 23.6 g of ClF3(g) and 40 g of Li(s) are mixed and allowed to react at atmospheric pressure and 25 C until one of the
0 answers
494 views
Compute the amount of heat released (absolute value) when 2.3 kg of liquid ethanol is burned in excess oxygen to make carbon
1 answer
652 views
A 1.2 g sample of C-5 H-10 O is burned completely in excess oxygen to yield CO2(g) and H2O(l) at 25 C, releasing 43.52 kJ of
1 answer
553 views
Calculate the volume of natural gas (methane) required to bring 3.9 L of water to a boil. Assume the initial temperature of the
1 answer
1,091 views
Compute the change in temperature when 1.1 g of sodium chloride is dissolved in 200.0 mL of water initially at 28 C. The heat
1 answer
566 views
If a chalice made of pure gold weighing 1.24 kg and initially at 15 C is filled with 100.0 mL of water at 89 C, what is the
1 answer
874 views
A sample of liquid mercury (mass 58 g and temperature 149.0 C) is poured into 79 g of H2O at 19 C. Calculate the final
1 answer
581 views
Calculate the final temperature of solution when 10 g of oxalic acid, (COOH)2(s), is dissolved in 110.0 mL of water that is
1 answer
702 views
If 18 g of Kr initially at 0.5 bar and 18 L is brought to 0.49 bar and 5L, what is the overall change in enthalpy of this
0 answers
418 views
When 19 mL of water at 22 C is combined with 18 mL of water at 64 C, what is the final temperature of the water?. The specific
2 answers
469 views
The enthalpy of dissociation for hydrogen
H2(g) → 2 H(g) is ΔH = 436.0 kJ/mol. What is the difference between the bond
0 answers
619 views
