Calculate the entropy change

Assignment Help Chemistry
Reference no: EM13162000

Calculate the final temperature when a 20.4 gram sample of ice at 0oC is placed into a styrofoam cup containing 111 grams of water at 72.7 oC. Assume that there is no loss or gain of heat from the surroundings. Calculate the entropy change that occurs during this process.

Reference no: EM13162000

Questions Cloud

Einsteins secret to amazing problem solving : Analyze the problem scenario that you have chosen, and organize your analysis into sections that correlate to each step in the selected problem solving strategy.
How many milligrams would you need to weigh out : Now if your lab partner needed 7.030 x 1019 molecules of Sodium cyanide (NaCN), how many milligrams would you need to weigh out?
What is the molar mass of the gas : A gas weighing 33.62 g occupies a 10.00 liter flask at 27oc and 730 torr of pressure. what is the molar mass of the gas?
Sate the acid volume needed to reach the equivalence point : Consider the titration of 46.0 mL of 1.2 M NaOH with 1.0 M HCl. Find the pH at the following points. A)After the addition of a large excess of acid
Calculate the entropy change : Calculate the final temperature when a 20.4 gram sample of ice at 0oC is placed into a styrofoam cup containing 111 grams of water at 72.7 oC. Assume that there is no loss or gain of heat from the surroundings.
Briefly describe the adverse effects caused by exposure : Briefly describe the adverse effects caused by exposure to radiation. Include some specific exposure levels associated with these significant health effects.
Calculate the average formal charge on an oxygen : Calculate the average formal charge on an oxygen atom in the structure of the phosphate ion that minimizes formal charges, such as demonstrated in Part A.
How could the bomb have been detonated : What actions should an exposed person take during the immediate aftermath of the explosion?
What would be the ph of a buffer : The Ka of acetic acid is 1.85 x 10-5. What would be the pH of a buffer prepared by mixing 50.0 mL of 1.0 M potassium acetate with 50.0 mL of 1.0 M acetic acid?

Reviews

Write a Review

 

Chemistry Questions & Answers

  Explain ammonia reacts with oxygen gas to produce water

Ammonia reacts with oxygen gas to produce water and nitrogen gas. What mass of oxygen gas must be used to react with 19g of ammonia

  The reaction between hydrochloric acid and zinc metal

The reaction between hydrochloric acid and zinc metal produces hydrogen gas and zinc chloride. If 50g of each hydrochloric acid and zinc are mixed

  Compounds that contain nitrogen in a three-membered ring

Explain the following observations. 1. Aziridines, compounds that contain nitrogen in a three-membered ring, undergo pyramidal inversion much more slowly than do other alkylamines

  Depict all possible isomers for the molecule

Draw all possible isomers for the molecule having the formula C7H7C1. The molecule contains one benzene ring.

  How many joules of heat are needed

The specific heat cacpacity of solid copper metal is 0.385/Jg-K. How many joules of heat are needed to raise the temperature of a 1.55-kg block of copper from 33.0 0C to 77.5 0C

  What is the final temperature of the block

Suppose that 1.08 g of rubbing alcohol (C3H8O) evaporates from a 75.0 g aluminum block.If the aluminum block is initially at 25 C, what is the final temperature of the block

  What the product of the complete hydrolysis contained

The product of the complete hydrolysis contained 1.8 mg of the compound shown below, and no other 2,4-dinitrophenyl derivatives of the ?-amino groups of other amino acids could be found How many polypeptide chains are in this protein?

  Calculate the mass of propylene glycol required

To obtain the same antifreeze protection requires 76 g of propylene glycol to replace each 62 g of ethylene glycol. Calculate the mass of propylene glycol required to replace

  Determin the acid content of the vinegar

A 50.0 mL sample of vinegar (density = 1.06 g/mL) was diluted to 500.0 mL.  Titration of a 50.0 mL aliquot of this solution required 42.5 mL of 0.0900 M  NaOH to reach the end point. Determin the acid content of the vinegar as wt. %  acetic acid.

  Define what are all of the intermolecular forces of nano3

What are ALL of the intermolecular forces of NaNO3? Choices (pick all that apply)

  How much energy in kilojoules is needed to heat ice

How much energy (in kilojoules) is needed to heat 3.20 of ice from -14.5 C to 23.5 C? The heat of fusion of water is 6.01, KJ/Mol and the molar heat capacity is 36.6 J/

  Calculate the minimum concentration of cr3+

Calculate the minimum concentration of Cr3+ that must be added to 0.095 M NaF in order to initiate a precipitate of chromium(III) fluoride. (For CrF3, Ksp = 6.6 × 10-11.)

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd