Part A ▾ It takes 53.0 J to raise the temperature of an 9.80 g piece of unknown metal from 13.0°C to 24.2 °C. What is the specific heat for the metal? Express your answer with the appropriate units. View Available Hint(s) C₂ = 0.483 4 Templates Symbols undo redo 2/ Submit Previous Answers Part B X Incorrect; Try Again; 5 attempts remaining Enter your answer using units of specific heat. Parts B and C The next two questions pertain to silver. They have nothing to do with unknown metal described in Part A. 9= 26.2 J Reser Submit " Part C J/gºc The molar heat capacity of silver is 25.35 J/mol °C. How much energy would it take to raise the temperature of 9.80 g of silver by 11.4°C? Express your answer with the appropriate units. ► View Available Hint(s) Previous Answers keyboard shortcuts Help ✓ Correct Correct answer s shown. Your answer 26.26 J was either rounded differently or used a different number of significant figures than required for this part. What is the specific heat of silver? Express your answer with the appropriate units. ▸ View Available Hint(s) Templates Symbols undo redo Teset keyboard shortcuts Help 14 0.235 J/gºc

Part A ▾ It takes 53.0 J to raise the temperature of an 9.80 g piece of unknown metal from 13.0°C to 24.2 °C. What is the specific heat for the metal? Express your answer with the appropriate units. View Available Hint(s) C₂ = 0.483 4 Templates Symbols undo redo 2/ Submit Previous Answers Part B X Incorrect; Try Again; 5 attempts remaining Enter your answer using units of specific heat. Parts B and C The next two questions pertain to silver. They have nothing to do with unknown metal described in Part A. 9= 26.2 J Reser Submit " Part C J/gºc The molar heat capacity of silver is 25.35 J/mol °C. How much energy would it take to raise the temperature of 9.80 g of silver by 11.4°C? Express your answer with the appropriate units. ► View Available Hint(s) Previous Answers keyboard shortcuts Help ✓ Correct Correct answer s shown. Your answer 26.26 J was either rounded differently or used a different number of significant figures than required for this part. What is the specific heat of silver? Express your answer with the appropriate units. ▸ View Available Hint(s) Templates Symbols undo redo Teset keyboard shortcuts Help 14 0.235 J/gºc

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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With the given data:Initial temperature = 30oC; Final temperature = 50oC Initial volume of water = 100 mL; Final volume of water = 100 mL Initial volume of isopropyl alcohol = 200 mL; Final volume of isopropyl alcohol = 195 mL Density of water = 1.00 g/mL specific heat of water = 4.18 J/goC Relative density of 70% isopropyl alcohol is 0.79 a.) Find the mass of the fuel burnt (mfuel) b.) The amount of moles of the fuel burnt, (nfuel) c.) molar enthalpy of combustion of the fuel by using the equation: ΔcH=(q/nfuel)(1kJ/1000J) d.) Would there be a change in the value of enthalpy of combustion if the water is heated until a 30oC change is observed, rather than 20oC? Why or why not?
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need help with this chemistry clear sig - fig please
O THERMOCHEMISTRY Using specific heat capacity to find temperature change A chemical reaction takes place inside a flask submerged in a water bath. The water bath contains 4.80 kg of water at 37.4 °C. During the reaction 111. kJ of heat flows out of the flask and into the bath. -1 -1 Calculate the new temperature of the water bath. You can assume the specific heat capacity of water under these conditions is 4.18 J-g K answer has the correct number of significant digits. Be sure your
show as much work as possible and make sure to put the correct answer (with units) in the box provided. Equation: Q=mc△TQ=mc△T How much heat energy is added to 29.0 g of copper when the temperature changes by 25 degrees? The specific heat of copper is 0.386 J/g ∘∘C. neat handwriteing please thank you!
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Q5.44 Homework. Unanswered How much heat (in kJ) is needed to heat a 200.0 mL sample of water initially at 25.0 °C to a boiling temperature of 100.0 °C? Respond with the correct number of significant figures in scientific notation (Use E notation and only 1 digit before decimal e.g. 2.5E5 for 2.5 x 105) Type your numeric answer and submit Unanswered. 4 attempts left Submit
dden. out of 10 1 5. Question 1 18 Answer 1: 18 Question 2 Attempt Attempt 3 Attempt 3 Attempt 2 Attempt 1 Be sure to answer all parts. Enter your answer in the provided box. A gas expands and does P-V work on the surroundings equal to 259 J. At the same time, it absorbs 241 J of heat from the surroundings. What is the change in energy of the system? (Answer in Two Significant Figures) J dillard.instructure.com Time (b) against a constant pressure of 4.00 atm. (Answer in 3 Significant Figures) 4 minutes 4 minutes 16 minutes 4 minutes A gas expands from 265 mL to 987 mL at a constant temperature. Calculate the work done (in joules) by the gas if it expands (a) against a vacuum. (Answer in 1 Significant Figure) w = 0 Score 5.5 out of 10 5.5 out of 10 4.5 out of 10. 0 out of 10 CA 0/1 pts 0.5/1 pts
Could you explain question 1 on my practice sheet? thank you
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