List the coefficients that balance this equations.
Separate with commas and NO spaces
1
1
1
Question 4
4.
List the coefficients that balance this equations.
Separate with commas and NO spaces
1
1
Given: A reaction has a △H of -22.0 KJ/mol and a △S of 250.0 J/mol at 23°C.
1
1
Given: C2H4 + H2 --> C2H6
â–³H = -136.9 kJ/mol
â–³S = 120.7 J/mol
T = 25°C
1
1
Question 11
11.
A 13000 kg sample of metal absorbs 10305.2 J of energy, and its temperature changes from 50.0°C to 125°C. Calculate the specific heat of the metal.
Include units.
Question 12
12.
The specific heat of copper is 0.385 j/g/°C. How much energy is needed to raise the temperature of 7.80 lbs of copper from 50.0°C to 105°C? (1lb = 453.6 g)
Include units.
Question 13
13.
The specific heat of aluminum is 0.900 J/g/°C. If 23450 J energy is needed to raise the temperature from 35.0°C to 65.0°C, what is the mass of aluminum with a specific heat of 0.900 J/g°C?
Include units
Question 14
14.
A 45.00 g sample of ice at -35.00°C is heated to steam at 100.0°C. Calculate the energy required for this change.
Include units.
Question 15
15.
A 9.00 g sample of water was raised from 45.0°C to steam at 100.0°C. What is the energy required for this change?
Include units.
Question 16
16.
What energy is required to melt a 3.5 g sample of ice at -5.0°C to 45.0°C?
Include units.
Question 17
17.
A calorimeter holds 1750.0 mL of water at 77.0°C. When it cools, the temperature drops to 15.0°C. How many calories are lost from the water?
Include units. 1g = 1mL
Question 18
18.
A 3500 mL sample of water was in a calorimeter at 15.0°C. If 35000. cal are applied, what is the final temperature?
Include units. 1g = 1mL
Question 2
2.
What is â–³H for the reaction given enthalpy of each compound?
Include units and round to FOUR sig figs.
Question 3
3.
Question 5
5.
What is â–³H for the reaction given enthalpy of each compound?
Include units and round to FIVE sig figs.
Question 6
6.
Question 7
7.
Calculate â–³G for this information.
Include Units and round to TWO sig figs.
Question 8
8.
Question 9
9.
What is Gibb's free energy given this information?