Explain the final temperature of the calorimeter contents

Assignment Help Chemistry
Reference no: EM13497250

In a coffee-cup calorimeter, 1.60 g of NH4NO3 is mixed with 77.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.47°C. Assuming the solution has a heat capacity of 4.18 J/°C · g and assuming no heat loss to the calorimeter, calculate the enthalpy change for the dissolution of NH4NO3 in units of kJ/mol.

Reference no: EM13497250

Questions Cloud

What is the magnetic force exterted on the electron : An electron is moving north in a region where the magnetic field is south. What is the magnetic force exterted on the electron
Define the gauche conformation than does 1 2-dichloroethane : Why does 1,2-Ethanediol exist to a much greater extent in the gauche conformation than does 1,2-dichloroethane?
Explain the carbon atoms in this hypothetical flat butane : If cyclobutane were flat, it would have exactly 90 degree bond angles and could theoretically use only p orbitals to form its C-C bonds. Propose a hybridization scheme for the carbon atoms in this hypothetical flat butane that would allow all the C..
What would the effect of a brush fine on these soils : What would the effect of a brush fine on these soils, assuming a light ground fire? (This means that you'll have to describe what a "light ground fire" is and would do to a soil, as well as describing the changes in soil chemistry following the ad..
Explain the final temperature of the calorimeter contents : In a coffee-cup calorimeter, 1.60 g of NH4NO3 is mixed with 77.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.47°C.
Compute the magnitude of the angular acceleration of the rod : A thin rod (length = 1.42 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge. What is the magnitude of the angular acceleration of the rod just before it strikes the floor
Show the marginal revenue product curves : Draw a graph that shows the marginal revenue product curves of the two franchises. Make sure your axes are properly labeled. Show the equilibrium level of competitive balance and the equilibrium level of player salaries.
Explain acid-base neutralization reactions are exothermic : Provide a chemical based explanation for the observation that acid-base neutralization reactions are exothermic
Prepare a cash flow forecast for the appropriate period : Prepare a cash flow forecast for the appropriate period. Assume that the restaurant will be run for six years, at the end of which the building could be sold for 300,000 pounds but the equipment will have no value at all.

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the molarity of the hcl solution

A sample of 0.0020 mole of HCl is dissolved in water to make a 1500. mL solution. Calculate the molarity of the HCl solution, the [H3O+], and the pH. For a strong acid such as HCI,.

  The considerations for the optimal chain length in glycogen

What are some of the considerations for the optimal chain length in glycogen? a) Optimal chain length is a compromise between number of available ends, and the need for debranching enzyme

  The precipitate is filtrated washed and re-dissolved in acid

The lead contained in a 0.2000 g sample is precipitated as PbCrO4. The precipitate is filtrated, washed and re-dissolved in acid to give lead ions and dichromate.

  What is the partial pressure of argon in the flask

A 1-rm L flask is filled with 1.45 g of argon at 25 {rm ^circ C}. A sample of ethane vapor is added to the same flask until the total pressure is 1.25 atm. what is the partial pressure of argon in the flask?

  Compute which reactant is the limiting reactant

calculate which reactant is the limiting reactant. In other words, the formula is CuSO4+ 5H20. Given the limiting reactant above, how much copper, in grams, should be produced by this reaction.

  Compute the pressure of the gas mixture

Calculate the pressure of the gas mixture and the partial pressure of each constituent gas if the mixture is in a 11.0 L vessel at 27 degree celsius

  How much of heat is gained by nickel

how much of heat is gained by nickel when 500 g of nickel is warmed from 22.4 to 58.4C?

  Explain synthesize 3-methyl-2-pentene

want to synthesize 3-methyl-2-pentene from 2-chloro-3-methylpentane. Which reagent would you use

  Calculate the solubility of zinc hydroxide

Calculate the solubility of zinc hydroxide, Zn(OH)2, in 1.00 M NaOH. Ksp = 3.0 × 10-16 for Zn(OH)2, Kf = 3.0 × 1015 for Zn(OH)42-

  Explain and specify the number of protons and neutrons

Specify the number of protons, neutrons, and electrons in the neutral atom iron-56. Enter your answers as integers separated by commas. The ion has _____ protons and _____ electrons

  Explain process requires initiation by a neutron

Which statement is not true about fission? Answer a. process requires initiation by a neutron b. products have smaller nuclei than reactants c. combination of atomic nuclei d. critical mass produces a chain reaction

  Define what is the atomic mass of gold

How many moles is a cube of gold with sides of 2.364 cm? Density of gold is 19.30 g/mL What is the atomic mass of gold?what is the name of the commom laboratory equipment.

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