Calculate the enthalpy change for the dissolution

Assignment Help Chemistry
Reference no: EM13164323

In a coffee-cup calorimeter, 1.60 g of NH4NO3 is mixed with 78.0 g of water at an initial temperature of 25.00°C. After dissolution of the salt, the final temperature of the calorimeter contents is 23.35°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: EM13164323

Questions Cloud

Write and equation for the reaction of hcl shifts : Write and equation for the reaction of Ba+ with CrO4 2-. Using the eqution you have written, explain how the addition of HCl shifts the equilibrium of the reaction
How many atoms are there in moles of water : How many atoms are there in 0.663 moles of water?
State balanced thermochemical equation for the reaction : 1)WhenH2(g)reacts withC2H4(g)to formC2H6(g),137kJ of energy areevolvedfor each mole ofH2(g)that reacts. Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
Write a balanced chemical equation for the reduction : write a balanced chemical equation for the reduction of dl-camphor by NaBH4. Assume all H of NaBH4 are used in the reduction.
Calculate the enthalpy change for the dissolution : 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.
State a perfect shima and a higher field of instrument : Even with a perfect shima and a higher field of instrument, the spectrum of 2-methyl-2-hexanol is difficult to interpret. Give two different reasons for this difficulty
Prepare an income statement for the year 2012 : When its president died, the corporation realized $150,000 from an insurance policy. The cash surrender value of this policy had been carried on the books as an investment in the amount of $46,000 (the gain is nontaxable).
Find the specific heat capacity of the metal : if 69 kJ of heat is applied to a 1012 g block of metal, the temperature of the metal increasesby 11.4 degrees C. Calculate the specific heat capacity of the metal in J/g degrees C.
Compute the pressure of the dimer when the total pressure : calculate the pressure of the dimer when the total pressure is .725 atm at equilibrium. 2ch3cooh(g) (ch3cooh)2(g) Monomer Dimer

Reviews

Write a Review

Chemistry Questions & Answers

  What volume would the gas occupy

A gas has a volume of 50.0 cm3 at a temperature of -73 C. What volume would the gas occupy at a temperature of -123 C if the pressure stays constant?

  How many grams of pbi2 should form

A 99.8mL sample of a solution that is 12.0% KI by mass(d=1.093g/mL) is added to 96.7mL of another solution that 14.0%Pb(NO3)2 by mass (d=1.134g/mL). How many grams of PbI2 should form.

  What is the final pressure

a 93 L sample of dry air cools from 145 degrees C to -22 degrees C while the pressure is maintained at 2.85 atm. what is the final pressure?

  What is the mass of the second isotope

The atomic weight of a newly discovered element is 98.225 amu. It has two naturally occuring isotopes. One isotope has a mass of 96.780 amu.

  What would be the volume of the gas

A certain quantity of a gas occupies 61.3 mL at 68 ?C. If the pressure remains constant, what would be the volume of the gas at 128 ?C?

  Explain how mass effects act to lower the carbonyl frequency

Explain how mass effects act to lower the carbonyl frequency, as well as how inductive and hyperconjugation effects act to raise the carbonyl frequency

  Determine the amount of zinc metal in grams

Find the mass of a reactant using Dalton's law of partial pressures, ideal gas law, and stoichiometry - Determine the amount of zinc metal in grams consumed in the reaction.(Vapor pressure of water at 25 o C-23.8mmHg)

  Identify the functional group

Give an acceptable name and identify the functional group; and

  What volume would an equal mass of ethanol occupy

A mass of mercury occupies 0.750 L. What volume would an equal mass of ethanol occupy? The density of mercury is > and the density of ethanol is 0.789 g/mL.

  Find the initial ph

Consider the titration of a 25.0 mL sample of .125M RbOH with .105M HCl. Find the initial pH.

  What is the change in internal energy for the system

The air in an inflated balloon (defined as the system) warms over a toaster and absorbs 121 J of heat. As it expands, it does 70. kJ of work. What is the change in internal energy for the system.

  How many moles of alcl3 are formed

student takes 116. g of BaCl2, and reacts it according to the following equation:  3BaCl2 + Al2(SO4)3 → 3BaSO4 + 2AlCl3 How many moles of AlCl3 are formed?

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