Compute the enthalpy change

Assignment Help Chemistry
Reference no: EM13110835

A calorimeter contains 27.0 grams of H2O at the temperature of 14.5 degree Celsius. When 1.40 grams of a substance that has a molar mass = 46.0 is mixed, it dissolves via the reaction and the temperature of the solution increases to 26.5 degree Celsius.Compute the enthalpy change, , for this reaction per mole of .

(Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] )

Reference no: EM13110835

Questions Cloud

Compute fusion for substance : Compute ΔHo fusion and ΔSo fusion for this substance If the pressure is increased to 120 bar, the melting temperature increases to 375.88 K..
How many times must the diameter of the flagellum : A typical bacterial flagellum is about 20 nm wide. About how many times must the diameter of the flagellum be increased to make visible using a bright field microscope?
Body''s mechanisms for controlling blood glucose levels : Describe the body's mechanisms for controlling blood glucose levels under normal and stress conditions.
Scientifically sound research support function-human service : Give the example of when it is suitable to apply mixed method research in human services field. Sum-up how scientifically sound research supports function of human services manager.
Compute the enthalpy change : Compute the enthalpy change, , for this reaction per mole of (Assume that the specific heat and density of the resulting solution are equal to those of water [4.18 and 1.00 ] )
Calculate the total oxygen absorption : Earthworms are aerobic organisms that require oxygen to carry out cellular respiration in order to make ATP. They absorb oxygen from the surrounding soil across their moist skin, which means that the rate of oxygen absorption depends on their surf..
Proportion-percentage and ratio : What are the differences among a proportion, a percentage, and a ratio? When would a researcher use a hypothesis test for the difference in two population proportions? Explain.
Explain how big a factor do you think composition of work : Explain how big a factor do you think composition of the workforce is in the likelihood of producing a CEO?
How could you separate compounds : Determine the final concentration if A 134 ml portion of that solution is diluted using 147 ml of H 2 O?

Reviews

Write a Review

Chemistry Questions & Answers

  Determine the phase composition

A total of sixteen grams of steam at the temperature of 120 degree Celsius is admitted to the system. Determine the phase composition and temperature at the time when equilibrium is reestablished?

  What is the change in volume if tempreture raises

The density of palladium(Pd) is 12.0 g/mL at 20 degree Celsius temperature and the density is 11.0 g/mL 1550 degree Celsius temperature . What is the change in volume (V) if tempreture raises of 4.21 kg Pd from 20°C to 1550°C.

  Heat of vaporization of benzene

Determine At what temperature does C 6 H 6 boil when the external pressure = 470 torr?

  Determine how many moles of so3 are formed

Determine how many moles of SO 3 are formed if 12.24 moles of O 2 react with excess SO 2 ,? use the balance equation given as  2SO 2 (g)+O 2 (g)----> 2SO 3 (g)

  Compute number of moles of gas in sample

If C 6 H 12 O 6 yields C 2 H 5 OH+CO 2 then balance this equation and determine what the percent yield for the reaction is if 575.0 grams of C 6 H 12 O 6 glucose yields 126.4mL of C 2 H 5 OH ethanol?

  Calculate the major product in the williamson

Calculate the major product in the Williamson ether synthesis between 1-bromopentane and sodium 1-phenylethoxide. correct stereochemistry of the product must be shown in its with four bonds - with H - at the chirality center.

  Find the maximum mass of aluminium oxide

What masses of iron(III)oxide and aluminium must be used to produce 15.0g iron? What is the maximum mass of aluminium oxide that could be produced?

  Determine the value of kc

Given that the  density of the gas mixture =0.312 g/L at the pressure of 0.2 atm and  temperature 500 Kelvin  At equilibrium. Determine the value  of Kc  also express your answer in units of (mol/L)?

  Determine how many grams of copper sulphate are there

Determine how many grams of copper sulphate are there in 219 grams of an aqeous solution that is 20.2% by weight of copper sulphate?

  Find out what will be the mole fraction of ethanol

calculate how much CaCN2 is required to form 12.6 moles of ammonia? Given that the percent yield is 65.8%?

  Testing the bounds of natural fibres

The purpose of this experiment is to find out which fabric out of polyester, polypropylene, cotton and wool is the most suitable to make a sling back chair.

  Write the product and balance the equation

Compute the number of mL of 2.00M H2SO4 required neutralizing 125.5mL of 1.2M KOH

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