What is the final temperature in a squeezed cold pack

Assignment Help Chemistry
Reference no: EM13695018

Problem- What is the final temperature in a squeezed cold pack that contains 41.0g of NH4NO3 dissolved in 125 mL of water? Assume a specific heat of 4.18J/(g??C) for the solution, an initial temperature of 29.5?C, and no heat transfer between the cold pack and the environment.

Any expert is able to provide answer for this problem in very short time

Reference no: EM13695018

Questions Cloud

Derive the equation for the long-run expansion path : The production function is: Q=ALaKb. Show that the isoquants for this production function are convex. (Show that MRTS diminishes as L increases. Why?) Derive the equation for the long-run expansion path
Calculate the ph range that would allow al(oh)3 : Suppose a solution contains 0.28 M Pb2 and 0.48 M Al3. Calculate the pH range that would allow Al(OH)3 to precipitate but not Pb(OH)2.
Explain what is the pressure of the atmosphere : Problem- A glass column is filled with mercury and inverted in a pool of mercury. The mercury column stabilizes at a height of 729 mm above the pool of mercury. What is the pressure of the atmosphere
Calculate change in g and ksp for the process : Problem- For the dissolving of ammonium nitrate in water, change in H = 25.7 kj/mol and change in S= 108.7 J/mol k. Calculate change in G and Ksp for the process at 25 degrees Celsius.
What is the final temperature in a squeezed cold pack : Problem- What is the final temperature in a squeezed cold pack that contains 41.0g of NH4NO3 dissolved in 125 mL of water? Assume a specific heat of 4.18J/(g??C) for the solution, an initial temperature of 29.5?C,
Calculate the ph of the resulting solution : Problem- Part 1 Equal volumes of 0.250 M weak base (kb=2.0x10-9) and 0.250 M HCL are mixed. Calculate the Ph of the resulting solution.
Calculate the energy of the photon in joules : Problem- A photon has a wavelength of 685 nm. Calculate the energy of the photon in joules. Enter answer in scientific notation.
What are the values of pb2 and na : Problem- A student mixes 45.0 mL of 3.32 M Pb(NO3)2(aq) with 20.0 mL of 0.00245 M Na2C2O4(aq). How many moles of PbC2O4(s) precipitate from the resulting solution. What are the values of [Pb2 ], [C2O42-], [NO3-], and [Na ] after the solution has r..
Calculate the ph during the titration of hcl : Problem- Calculate the pH during the titration of 50.00mL of 0.1000M HCl with 0.1000M NaOH solution after the following solutions of base: (a) 0.00mL, (b) 25.00mL, (c) 49.00mL

Reviews

Write a Review

Chemistry Questions & Answers

  What colligative properties are displayed by these situation

What colligative properties are displayed by these situations.

  Compute w and delta e for the vaporization

Calculte w and delta E for the vaporization of 1.00 mol water at 100 degrees celsius and 1.00 atm pressure.

  Determines the rate constant for reaction

Determines the rate constant for this reaction and express and determine how many mL of a 0.157M solution of KOH is required to react with 0.385g of CH 3 COOH?

  Define bromocresol green was used as an indicator

In writing a lab report, a hypothesis is needed. The experiment called for a titration HCl solution of unknown molarity with TRIS base. Bromocresol green was used as an indicator.

  Draw lewis dot structures

Draw lewis Dot structures. Use model kits, styrofoam balls and/or gum drops to make a model of the molecule or ion. Be sure to place electron groups (toothpicks or sticks) as far apart as possible.

  State what is the ratio of the rate constants

The activation energy for a given reaction is 87 kJ/mol. What is the ratio of the rate constants for this reaction when the temperature is decreased from 37 °C to 15 °C

  Carbon tetrachloride reacts at high temperatures with

carbon tetrachloride reacts at high temperatures with oxygen to produce two toxic gases phosgene and chlorine.ccl4g

  Compute the percent relative error when using concentrations

Using concentrations, the solubility of [Ag+] in a solution of 0.01 M KCl is 1.8 * 10-8. Calculate the percent relative error when using concentrations for the solubility of [Ag+] compared to activities

  Explain a certain first-order reaction has a rate constant

A certain first-order reaction has a rate constant of 3.40×10?3s^-1 . How long will it take for the reactant concentration to drop to 1/8 of its initial value

  What is the percent by mass of nahco3

What is the percent by mass of NaHCO3 in a solution containing 70 g of NaHCO3 dissolved in 700 mL of H2O?

  Define what technique would you use to determine the density

What technique would you use to determine the density of approximately 5 grams samples of granular sugar at 20 degress celsius and 1 atmosphere pressure

  The other isotope having mass 46 amu accounts for the other

suppose that a hypothetical element consists of a mixture of two isotopes. one isotope having mass 44 amu is present in

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