Question

When a 5.93-g sample of solid sodium hydroxide dissolves in 39.8 g of water in a...

When a 5.93-g sample of solid sodium hydroxide dissolves in 39.8 g of water in a coffee-cup calorimeter (see above figure) the temperature rises from 22.00 oC to 56.12 oC. Calculate H in kJ/mol NaOH for the solution process. NaOH(s) Na+(aq) + OH-(aq) The specific heat of water is 4.18 J/g-K.

Homework Answers

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
When a 3.81-g sample of solid ammonium chloride dissolves in 57.9 g of water in a...
When a 3.81-g sample of solid ammonium chloride dissolves in 57.9 g of water in a coffee-cup calorimeter (see above figure) the temperature falls from 24.00 oC to 19.94 oC. Calculate H in kJ/mol NH4Cl for the solution process. NH4Cl(s) NH4+(aq) + Cl-(aq) The specific heat of water is 4.18 J/g-K.
1. The specific heat of iron metal is 0.450 J/g⋅K. How many J of heat are...
1. The specific heat of iron metal is 0.450 J/g⋅K. How many J of heat are necessary to raise the temperature of a 1.05 −kg block of iron from 28.0 ∘Cto 85.0 ∘C? 2. A 1.80-g sample of phenol (C6H5OH) was burned in a bomb calorimeter whose total heat capacity is 11.66 kJ/∘C. The temperature of the calorimeter plus contents increased from 21.36∘Cto 26.37∘C. A. Write a balanced chemical equation for the bomb calorimeter reaction. B. What is the heat...
A. Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the...
A. Sodium metal reacts with water to produce hydrogen gas and sodium hydroxide according to the chemical equation shown below. When 0.020 mol of Na is added to 100.00 g of water, the temperature of the resulting solution rises from 25.00°C to 33.60°C. If the specific heat of the solution is 4.18 J/(g • °C), calculate ΔH for the reaction, as written. 2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g) ΔH= ? Sodium metal reacts with water to...
When a 4.00-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a...
When a 4.00-g sample of solid ammonium nitrate dissolves in 60.0 g of water in a coffee-cup calorimeter (see figure below), the temperature drops from 23.0°C to 16.4°C. Calculate ΔH (in kJ/mol NH4NO3) for the solution process shown below. Assume that the specific heat of the solution is the same as that of pure water. Hint: this process occurs at constant pressure.
Calorimetry Problem: Show your work neatly and methodically. Include the sign associated with ΔH. 1. When...
Calorimetry Problem: Show your work neatly and methodically. Include the sign associated with ΔH. 1. When a 6.55 gram sample of solid sodium hydroxide dissolves in 115.00 grams of water in a coffee-cup calorimeter, the temperature rises from 21.6°C to 38.7°C. Calculate ΔH, in kJ/mole NaOH, for the solution process. NaOH(s)  Na1+(aq) + OH1- (aq) The specific heat of the solution is 4.18 J/g °C. 3. 2, A 2.600 gram sample of phenol, C6H5OH, was burned in a bomb...
A 9.07-g sample of NaOH is dissolved in 104.9 g of water in a coffee cup...
A 9.07-g sample of NaOH is dissolved in 104.9 g of water in a coffee cup calorimeter. The temperature of the solution rises from 15.49°C to 23.76°C. Calculate ∆Hrxn, in kJ for the dissociation of NaOH in water Assume that the heat capacity for the solution is 4.18 J/g°C.
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 4.13 g of CuCl2(s) are dissolved in 111.70 g of water, the temperature of the solution increases from 25.33 to 28.58 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.89 J/°C....
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...
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....
When a solid dissolves in water, the solution may become hotter or colder. The dissolution enthalpy...
When a solid dissolves in water, the solution may become hotter or colder. The dissolution enthalpy (dissolving) can be determined using a coffee cup calorimeter. In the laboratory a general chemistry student finds that when 10.13 g K2SO4(s) is dissolved in 114.80 g water, the temperature of the solution drops from 24.11 to 20.86 °C. The heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.77 J/°C. Based on...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT
Active Questions
  • What is the temperature of N2 gas if the average speed (actually the root-mean-square speed) of...
    asked 4 minutes ago
  • Question One: Basic security concepts and terminology                         (2 marks) Computer security is the protection of...
    asked 17 minutes ago
  • In program P83.cpp, make the above changes, save the program as ex83.cpp, compile and run the...
    asked 25 minutes ago
  • the determination of aspirin in commercial preparations experment explain why the FeCl3-KCl-HCl solution was ased as...
    asked 37 minutes ago
  • Describe important events and influences in the life of Wolfgang Amadeus Mozart. What styles, genres, and...
    asked 40 minutes ago
  • 3.12 Grade Statistics Write a python module "school.py" that prints school information (first 3 lines of...
    asked 41 minutes ago
  • Using python, please explain. The factorial of an integer N is the product of the integers...
    asked 45 minutes ago
  • alamoto Co. manufactures a single product that goes through two processes — mixing and cooking. The...
    asked 50 minutes ago
  • QUESTION 21 _______ is the ease of use with which network users can access the network...
    asked 55 minutes ago
  • Configure IP static routing using 6 pc's, 3 routers & 3 switches by using CISCO PACKET...
    asked 1 hour ago
  • Write a C++ program that calculates the series and parallel resistance for a group of resister...
    asked 1 hour ago
  • 1. A host computer is assigned the IP address 192.168.12.8 and a subnet mask of 255.255.255.192....
    asked 1 hour ago