State substances reach thermal equilibrium at a temperature

Assignment Help Chemistry
Reference no: EM13194126

Two different substances at different temperatures are allowed to come in contact and thermally equilibrate. The mass of the first substance, (substance A), is 31.00 grams and its initial temperature is 21.4oC. A is allowed to come in contact with substance B. B has a mass of 46.28 grams and its initial temperature is 86.5oC. These two substances reach thermal equilibrium at a temperature of 64.2oC. If the specific heat capacity of substance B is 1.17 J/g·C, what is the specific heat capacity of substance A? Assume no heat is lost to the surroundings.

Reference no: EM13194126

Questions Cloud

Compute the molarity of the solution : C2H5OH solution has a density of 1.01 g/mL. Calculate the molarity of the C2H5OH solution
Compute the molar concentration of all the ions : calculate the molar concentration of all the ions remaining in solution after the reaction has taken place ... Cr(III), hydroxide, potassium, nitrate
Define what is the freezing pint of a solution : what is the freezing pint of a solution when 13.55 g of Mg(NO3)2 is dissolved in 156 mL of water when Tdegree
State the equations for two different acid base reactions : write the equations for two different acid base reactions of diethylamine with water. Indicate the direction of the equlibrium for both reactions. The pKa of diethyl ammonium ion is 10.94.
State substances reach thermal equilibrium at a temperature : A is allowed to come in contact with substance B. B has a mass of 46.28 grams and its initial temperature is 86.5oC. These two substances reach thermal equilibrium at a temperature of 64.2oC. If the specific heat capacity of substance B is 1.17 J/..
State the standard free energy for the neutralization : The standard free energy for the neutralization of HCl with NaOH at 25 degrees Celsius is -79.9KJ/mol. Calculate the equilibrium constant for the reaction.
State equilibrium constant for the reaction of acetic acid : Calculate the equilibrium constant for the reaction of acetic acid and diethylamine. The pKa of protonated diethylamine is 10.94. What are the major forms present in a dilute soultion
Compute the equilibrium constant for the reaction : The standard free energy for the neutralization of HCl with NaOH at 25 degrees celsius is -79.9KJ/mol. Calculate the equilibrium constant for the reaction.
State how many moles of h gas will evolved : 2Al(s) + 2KOH(aq) + 4H2SO4(aq) + 22H2O(l) = 2AlK(SO4)2.12H2O(s) + 3H2(g) How many moles of H gas will evolved when 6 moles of Al react with excess KOH, H2SO4 and water?

Reviews

Write a Review

Chemistry Questions & Answers

  Compute the ka for the acid

dissolved in water to produce a 0.0125 M solution. The pH of the resulting solution is 6.39. Calculate the Ka for the acid.

  What is the molarity of a solution made by dissolving

What is the molarity of a solution made by dissolving 74.8 g of strontium perchlorate in sufficient water

  Calculate the gibbs energy of the reaction

Calculate the Gibbs energy of the reaction (delta G rxn) at 25'C for the above rxn when all three gases are at 0.0010 atm. Kp = 1.8 x 10 ^ - 18

  Determine the number of pounds of water in the fish tank

A fish tank holds 30.0 gal of water. Using a density of 1.0 g/mL for water, determine the number of pounds of water in the fish tank.

  State compound a is a water-soluble liquid

Compound A is a water-soluble liquid that gives positive 2,4- dinitrophenylhydrazine and iodoform tests and a negative Tollens test. The IR spectrum of A has bands at 2950, 1720 and 1370 cm-1.

  Determine the mass of the steel bar

Determine the mass of the steel bar If the final temperature of the system reached to 21.0 degree celsius?

  What is the pressure in the container

If 4.50 g of methane gas (CH4) is in a 2.00-L container at 35°C, what is the pressure in the container?

  What mass of silver chloride should you form

You mix 55 mL of 1.00M silver nitrate with 25 mL of 0.81 M sodium chloride. What mass of silver chloride should you form?

  Explain what type of hplc column and detector

What type of HPLC column and detector could be used to separate and detect benzaldehyde and 4-hydroxymethylbenzaldehyde?

  Chemistry extended problems

CHEM 354 Extended Problems, The variation of EMF for the cell below with temperature is shown in the graph below.

  State most organic polymers are named based on the monomers

Most organic polymers are named based on the monomers used in their production. However, poly(vinyl alcohol) (PVA) is not made from vinyl alcohol,

  Compare the experimental mole ratio of nahco3 to nacl

Compare the experimental mole ratio of NaHCO3 to NaCl with the theoretical mole ratio. Explain the difference. The experimental mole ratio is 1:1.

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