ZuoTi.Pro
Question
a calorimeter contains 150g of water at 20.1 C. the temperature of the water increases to 28.5

A calorimeter contains 150 g of water at 20.1°C. The temperature of the water increases to 28.5°C when 50.8 g of sulfuric aci
science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

Exothermic reaction are defined as those reactions for which heat is released as a result of chemical reaction i.e temp of reaction medium is increased eventually which is also observed for the abobe stated process.So it is a exothermic process.

For calorimetric heat calculation we have

Q=m×s×detaT where m=total mass of solution(200.8 gm)

s=specific heat(4.18 j/gm.degreeC)

deltaT=(28.5-20.1=8.4)

Heat generated = 200.8×4.18×8.4=7050.49J

Heat released during reaction = -heat generated=-7050.49J.

0 0
Add a comment
Know the answer?
Add Answer to:
a calorimeter contains 150g of water at 20.1 C. the temperature of the water increases to...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

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

  • C. C. Frequency (Hz): Dissolving an ionic solid in a coffee-cup calorimeter filled with 61381 H...

    C. C. Frequency (Hz): Dissolving an ionic solid in a coffee-cup calorimeter filled with 61381 H temperature of the calorimeter to increase from 19.2°C to 26.5°C What was the heat change for the water inside the calorimeter, in kilojoules specific heat capacity for water-4.1841 Heat change (kJ): Is the heat of solution, AH soin for the ionic solid dissolved in the calorimeter exothermic or endothermic? B. 1931)}}}]

  • A calorimeter contains 35.0 mL of water at 14.5 ∘C . When 1.80 g of X...

    A calorimeter contains 35.0 mL of water at 14.5 ∘C . When 1.80 g of X (a substance with a molar mass of 62.0 g/mol ) is added, it dissolves via the reaction X(s)+H2O(l)→X(aq) and the temperature of the solution increases to 28.5 ∘C . Calculate the enthalpy change, ΔH, for this reaction per mole of X. Assume that the specific heat of the resulting solution is equal to that of water [4.18 J/(g⋅∘C)], that density of water is 1.00...

  • Heat Capacity The temperature of an object increases by 29.0 °C when it absorbs 3693 J...

    Heat Capacity The temperature of an object increases by 29.0 °C when it absorbs 3693 J of heat. Calculate the heat capacity of the object. What is the formula for heat (9) that does not contain a variable for mass? Solve: Calculate the specific heat capacity of the object if the object weighs 331 grams. What is the formula for heat (g) that contains a specific heat capacity term? Solve: Calorimetry A researcher studying the nutritional value of a new...

  • LAB 10 PRE LAB WORKSHEET Specific Heat Capacity (C) The energy transferred as heat that is...

    LAB 10 PRE LAB WORKSHEET Specific Heat Capacity (C) The energy transferred as heat that is required to raise the temperature of 1 gram of a substance by 1 kelvin. q= - m x Cp X AT q=heat lost or gained, m= mass of solution (grams) Cp = the Specific Heat Capacity of a compound (J/g x °C)) AT = Tfinal-Tinitial AHsolution = 9 moles of salt 1. If 1.25 g of ammonium nitrate (NH4NO3) is dissolved in 25.0 mL...

  • chemical reaction was performed in a coffee cup calorimeter (the set up you experiment 2). The calorimeter containe...

    chemical reaction was performed in a coffee cup calorimeter (the set up you experiment 2). The calorimeter contained 50.0 g of water at an initial temperature After the reaction was complete the temperature of the water was 27.0°C. Coleute a. Calculate the energy change, in joules (J), of the water. The specific heats is 4.18 J/gºC. ater at an initial temperature of 22.0°C. ules ("), of the water. The specific heat (S.H.) of water Page 2 UTOROURUAN b. Identify the...

  • Part A Calculate the final temperature when 35 mL of water at 50 °C are added to 75 mL of water at 45 °C. Assume de...

    Part A Calculate the final temperature when 35 mL of water at 50 °C are added to 75 mL of water at 45 °C. Assume density of water is 1.00 g/mL and no heat is lost to the calorimeter. IVO AQ o 2 ? Part A If the specific heat of methanol is 2.51 J/K-g, how many joules are necessary to raise the temperature of 12 g of methanol from 26°C to 78°C ? IVO AO + O 2 ?...

  • 15. A solution reaction that involves dissolving KBr in water in a calorimeter causes the temperature of the to dec...

    15. A solution reaction that involves dissolving KBr in water in a calorimeter causes the temperature of the to decrease from 21 °C to 18 °C. This reaction is Isothermal Specific Exothermic Endothermic

  • (5 pts.) A chemical reaction was performed in a coffee cup calorimeter (the set up you...

    (5 pts.) A chemical reaction was performed in a coffee cup calorimeter (the set up you used in experiment 2). The calorimeter contained 50.0 g of water at an initial temperature of 22.0°C. After the reaction was complete, the temperature of the water was 27.0 °C. a. Calculate the energy change, in joules (u), of the water. The specific heat (S.H.) of water is 4.18 J/gºC. b. Identify the reaction as endothermic or exothermic. Please explain why.

  • Is it possible using the Styrofoam calorimeter for the temperature to decrease when a solid is added to water in one of...

    Is it possible using the Styrofoam calorimeter for the temperature to decrease when a solid is added to water in one of the calorimeter wells? Select one: a. Yes, if an exothermic process occurred. b. No, all reactions in calorimeters cause an increase in temperature. c. Yes, if the solid did not dissolve in or react with water. d. No, heat transfer from the surroundings would keep the temperature at room temperature. e. Yes, if an endothermic process occurred. I...

  • 1. 18 g of LiCl(s) is dissolved in 18.0mL of water that is initially 20.0°C. a)...

    1. 18 g of LiCl(s) is dissolved in 18.0mL of water that is initially 20.0°C. a) Write the chemical equation for the dissolution of LiCl(s) b) Calculate the molar enthalpy of dissolving LiCl(s) in water. Is this process endothermic or exothermic? c) Calculate the amount of heat absorbed/released when 1.18 g of LiCl(s) dissolves. d) Calculate the final temperature of the solution. You can assume the heat capacity of solution is equal to the heat capacity of water (dwater =...

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