Question

a- You have 200 g of coffee at 45 0C, Coffee has the same specific heat...

a- You have 200 g of coffee at 45 0C, Coffee has the same specific heat as water. How much ice at -10 0C do you need to add in order to reduce the coffee’s temperature to 30 0

b- A laboratory technician drops a 0.06 kg sample of unknown solid material, at a temperature of 100 0C, into a calorimeter. The calorimeter can, initially at 19 0C, is made of 0.2 kg of copper and contains 0.15 kg of water. The final temperature of the calorimeter can, and content is 250 Compute the specific heat of the sample.

Homework Answers

Answer #1

#Hi, if you are happy and find this useful please thumbs up. In case, if you have any query regarding the solution please let me know in the comments section below. We can discuss. Thanks!!

Know the answer?
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
Similar Questions
You have 200 g of coffee at 45 0C, Coffee has the same specific heat as...
You have 200 g of coffee at 45 0C, Coffee has the same specific heat as water. How much ice at -10 0C do you need to add in order to reduce the coffee’s temperature to 30 0
You have 200 g of coffee at 55C, Coffee has the same specific heat as water....
You have 200 g of coffee at 55C, Coffee has the same specific heat as water. How much ice at -5C do you need to add in order to reduce the coffee’s temperature to 27C?
In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of...
In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a metal. She heats 19.5 grams of tungsten to 97.80°C and then drops it into a cup containing 78.3 grams of water at 22.58°C. She measures the final temperature to be 23.20°C. Assuming that all of the heat is transferred to the water, she calculates the specific heat of tungsten to be  J/g°C.
You want to cool 0.2 kg of coffee, initially at temperature Th = 80° C, with...
You want to cool 0.2 kg of coffee, initially at temperature Th = 80° C, with ice initially at Tc = 0° C. The specific heat of ice is about 2108 J/kg K, and its latent heat of melting is about 334, 000 J/kg. You may take the specific heats of liquid water and coffee to be the same: 4187 J/kg K. A) Assume the coffee and ice form a closed system. You want them to equilibrate at 40° C....
A piece of aluminum (specific heat 0.910kJ/kg 0C) of mass 161g at 74 0C is dropped...
A piece of aluminum (specific heat 0.910kJ/kg 0C) of mass 161g at 74 0C is dropped into a Styrofoam cup filled with 152ml water at 20 0C. What are the final temperatures of the water and the aluminum? Please use C instead of 0C in your answer. Hint 1: because the cup is well-insulated, you can assume that all the heat leaving the aluminum as it cools goes to heating the water. Hint 2: How are the final temperature of...
You are given 100 g of coffee (same specific heat as water) at 80.0° C (too...
You are given 100 g of coffee (same specific heat as water) at 80.0° C (too hot to drink). In order to cool the coffee to 50.0° C (neglect heat content of the cup and heat exchanges with the surroundings) calculate: a. How much tap water at 20.0° C must be added? b. How much ice (at 0.0° C) must be added? c. How much ice (at -10.0° C) must be added? 2. How much energy is required to heat...
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution...
When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 18.53 g of Cs2SO4(s) are dissolved in 100.40 g of water, the temperature of the solution drops from 25.54 to 22.92 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.85 J/°C....
A)In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of...
A)In the laboratory a student uses a "coffee cup" calorimeter to determine the specific heat of a metal. She heats 19.3 grams of chromium to 98.47°C and then drops it into a cup containing 81.8 grams of water at 23.17°C. She measures the final temperature to be 24.97°C. Assuming that all of the heat is transferred to the water, she calculates the specific heat of chromium to be __________________ J/g°C. B) An electric range burner weighing 616.0 grams is turned...
1. When a solid dissolves in water, heat may be evolved or absorbed. The heat of...
1. When a solid dissolves in water, heat may be evolved or absorbed. The heat of dissolution (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 6.20 g of CsClO4(s) are dissolved in 115.60 g of water, the temperature of the solution drops from 22.87 to 19.50 °C. Based on the student's observation, calculate the enthalpy of dissolution of CsClO4(s) in kJ/mol. Assume the specific heat of the solution is...
In a calorimetry experiment to determine the specific heat capacity of a metal block, the following...
In a calorimetry experiment to determine the specific heat capacity of a metal block, the following data was recorded: Quantity Mass of the metal block 0.50 kg Mass of empty calorimeter + Stirrer 0.06 kg Mass of calorimeter + stirrer + water 0.20 kg Mass of water 0.14 kg Initial Temperature of metal block 55.5 ⁰C Initial Temperature of water and calorimeter 22 ⁰C Final Temperature of block- water system 27.4 ⁰C Take the specific heat capacity of water to...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT