A cup containing 93.0 ml of H20 is initially at room temperature 23.0°C. A chilled steel rod at 2.4°C is placed in the water. If the final temperature of the system is 22.2°C, what is the mass of the steel rod? Use the following values: density of water = 1.00 g ml specific heat capacity of water = 4.18 Jg-1 oc-1 specific heat capacity of steel = 0.452 ) g1 oc-1 Express your answer to three significant figures. mass of steel rod = 9. Check

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A cup containing 93.0 mL of H20 is initially at room temperature 23.0°C. A chilled steel rod at 2.4°C
is placed in the water. If the final temperature of the system is 22.2°C, what is the mass of the steel
of
rod?
Use the following values:
density of water = 1.00 g ml-
stion
4.18 Jg-1 °c-1
specific heat capacity of water =
specific heat capacity of steel = 0.452 J g °c-1
Express your answer to three significant figures.
mass of steel rod =
Check
Transcribed Image Text:A cup containing 93.0 mL of H20 is initially at room temperature 23.0°C. A chilled steel rod at 2.4°C is placed in the water. If the final temperature of the system is 22.2°C, what is the mass of the steel of rod? Use the following values: density of water = 1.00 g ml- stion 4.18 Jg-1 °c-1 specific heat capacity of water = specific heat capacity of steel = 0.452 J g °c-1 Express your answer to three significant figures. mass of steel rod = Check
Question 13
Calculate A,H for the following reaction:
Incorrect
Mark 0.00 out of
FezO3(s) + 3CO(g) - 2Fe(s) + 3CO2(g)
1.00
Flag question
Express your answer to one decimal place. Use the following reactions and given AH's:
2Fe(s) + 3/2O2(9) - FezO:(s), AH = -824.2 k) mol-
CO(g) + 1/20,(g) - Co,(a), A,H = -282.7 k) mol-
AH
x kJ mol-
Fin
Check
comect
Marks for this submission 0.00/1.00. ths submission attracted a penalty oto10
Transcribed Image Text:Question 13 Calculate A,H for the following reaction: Incorrect Mark 0.00 out of FezO3(s) + 3CO(g) - 2Fe(s) + 3CO2(g) 1.00 Flag question Express your answer to one decimal place. Use the following reactions and given AH's: 2Fe(s) + 3/2O2(9) - FezO:(s), AH = -824.2 k) mol- CO(g) + 1/20,(g) - Co,(a), A,H = -282.7 k) mol- AH x kJ mol- Fin Check comect Marks for this submission 0.00/1.00. ths submission attracted a penalty oto10
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