Question

A mass of 45.0 gg of an unknown solid initially at 160.0 ∘C∘C is added to...

A mass of 45.0 gg of an unknown solid initially at 160.0 ∘C∘C is added to an ideal constant-pressure calorimeter containing 100.0 gg of water (Cs,water=4.184 J/(g⋅∘C))(Cs,water=4.184 J/(g⋅∘C)) initially at 20.0 ∘C∘C. After the mixture reaches thermal equilibrium, the final temperature is recorded to be 38.60 ∘C∘C. What is the specific heat capacity of the unknown solid?

Express your answer to three significant figures.

0 0
Add a comment Improve this question Transcribed image text
Answer #1

Solution- Heat released by the Solid is taken by water. So, Al released - Aq accepted. where qms AT mamay S; specific heat ms

Add a comment
Know the answer?
Add Answer to:
A mass of 45.0 gg of an unknown solid initially at 160.0 ∘C∘C is added to...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
  • 4 .184J/( "C))intay at 20.0 °C. Aher the A mass of 42.5g of an unknown solid...

    4 .184J/( "C))intay at 20.0 °C. Aher the A mass of 42.5g of an unknown solid initially at 2000'C is added to an ideal constant-pressure calorimeter containing 100.0 g of water ( C mature reaches thermal equilibrium, the final temperature is recorded to be 25.40 "C. What is the specificheat capacity of the unknown Sold? Express your answer to three significant figures. View Available Hints) V AED RO? Submit Previous Answers

  • Calculating specific heat capacity A constant-pressure calorimeter is often used to find the specific heat capacity...

    Calculating specific heat capacity A constant-pressure calorimeter is often used to find the specific heat capacity of a substance if it is not known. A known mass of the substance can be heated and added to water of known mass and initial temperature. Since the specific heat capacity of water is known ( C s,water =4.184J/(g⋅ ∘ C)) , the amount of heat transferred to the water can be calculated by measuring the final temperature of the mixture at thermal...

  • 4. Heat transfer: q = mass x Cs x ΔT and –qreaction = +qsolution a. A...

    4. Heat transfer: q = mass x Cs x ΔT and –qreaction = +qsolution a. A piece of metal with a mass of 8.6 g was heated to 100.0°C and dropped into a coffee cup calorimeter containing 402.4 g of water at 25.0°C. If the temperature of the water and the metal at thermal equilibrium is 26.4°C, what is the specific heat of this metal in J/g°C? b. How much heat energy must be added in order to boil a...

  • An ice cube with a mass of 53.0 g at 0.0 °C is added to a...

    An ice cube with a mass of 53.0 g at 0.0 °C is added to a glass containing 368 g of water at 45.0 °C. Determine the final temperature of the system at equilibrium. The specific heat capacity of water, Cs, is 4.184 J/g·°C and the standard enthalpy of fusion, ΔH°fus, of water is 6.01 × 103 J/mol. Assume that no energy is transferred to or from the surroundings.

  • please help me. Thanks A piece of copper metal weighing 36.3 g is initially at 100.0...

    please help me. Thanks A piece of copper metal weighing 36.3 g is initially at 100.0 degree C. It is dropped into a coffee cup calorimeter containing 50.0 g of water at a temperature of 20.0 degree C. After stirring, the final temperature of both copper and water is 25.0 degree C. Assuming no heat losses, an that the specific heat capacity of water is 4.184 J/g degreeC, what is the specific heat capacity of the copper in J/g degreeC?

  • 175.0 grams of an unknown metal at 85.0°C is added to 75.00 grams of water (cs...

    175.0 grams of an unknown metal at 85.0°C is added to 75.00 grams of water (cs = 4.184 J/g.°C) at 21.0°C in an insulated container. If the final temperature of the metal and water is 26.2°C then what is the specific heat capacity (Cs) of the metal? Select one: a. -0.16 J/g.°C b. 0.16 J/g.°C c. 6.3 J/g.°C O d.-6.3 J/g.°C e. 1.4 J/g.°C

  • An ice cube with a mass of 46.4 g at 0.0 ∘C is added to a...

    An ice cube with a mass of 46.4 g at 0.0 ∘C is added to a glass containing 4.20×102 g of water at 45.0 ∘C . Determine the final temperature of the system at equilibrium. The specific heat capacity of water, ?s , is 4.184 J/g⋅∘C , and the standard enthalpy of fusion, Δ?∘fus , of water is 6.01×103 J/mol . Assume that no energy is transferred to or from the surroundings.

  • A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celcius is added to...

    A 25.00 gram sample of an unknown metal initially at 99.0 degrees Celcius is added to 50.00 grams of water initially at 9.47 degrees Celcius. The final temperature of the system is 20.15 degrees Celcius. Calculate the specific heat of the metal. (The specific heat of water is 4.184 J/g*C). Record your answer in scientific notation using three significant figures.

  • can you explain the correcr answer A metal alloy bolt is initially at 100.0°C. It is...

    can you explain the correcr answer A metal alloy bolt is initially at 100.0°C. It is dropped into a coffee cup calorimeter containing 500 g of water at a temperature of 20.0°C Arter stirring, the fnal temperature of both bolt and water is 25.0°C. Assuming no heat losses, and that the specific heat (capacity of water is 4.18 J/gK what is the heat capacity of the bolt in J/K? A 2.79 JK 3.3.33 J/K G. 139 J/K 1.200 JK None...

  • 5.876 g of ammonium nitrate (M.W. 80.043 g/mol) was added to a calorimeter containing 99.270 g...

    5.876 g of ammonium nitrate (M.W. 80.043 g/mol) was added to a calorimeter containing 99.270 g of water at 24.5 °C. After the NH4NO3 dissolved the final temperature reached was 20.0°C. Calculate 4sys for the dissolution of NH4NO3 The specific heat of water is 4.184 Jg-toc- and the heat capacity of the calorimeter (the "B" constant) is 15.0 J°C-.

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT