How to compute the enthalpy of the reaction

Assignment Help Chemistry
Reference no: EM13651818

3.25 grams of Mg is dropped into 125 mL of hydrochloric acid. The initial temperature of the calorimeter is 18.5°C and the final temperature is 25.6°C. Assume that the heat capacity of the calorimeter is 4.86 J/g°C. Calculate the enthalpy of the reaction.

Mg + HCl -> MgCl2 + H2

Reference no: EM13651818

Questions Cloud

Define how many grams of ba(oh)2 are needed to prepare : How many grams of Ba(OH)2, are needed to prepare 650mL solution to a 0.9M concentration
Calculate with what speed would it hit the ground : A 145 g baseball is dropped from a tree 9.0 m above the ground. With what speed would it hit the ground if air resistancecould be ignored
Define neutralize the hcl produced by complete solvolysis : Find the volume in milliliters of 0.35 NaOH required to neutralize the HCl produced by complete solvolysis of 1ml of t-BuCl (2-chloro-2-methylpropane)
Estimate how much mechanical energy is lost due to friction : A crate of mass 14.0 kg is pulled upa rough incline with an initial speed of 1.50 m/s. How much mechanical energy is lost due to friction
How to compute the enthalpy of the reaction : The initial temperature of the calorimeter is 18.5°C and the final temperature is 25.6°C. Assume that the heat capacity of the calorimeter is 4.86 J/g°C. Calculate the enthalpy of the reaction.
Explain the volume of deionized water : Why do you not need to accurately measure the volume of deionized water in which you dissolve the iron salt
Explain methane is ch4 and may be an important automobile : Determine the amount of heat evolved in the combustion of 1 mol of methane gas to carbon dioxide and water (liquid). Assume standard conditions apply. Methane is CH4 and may be an important automobile fuel someday.
Determine what is the magnitude of the induced current : a flat coil of wire consisting of 20 turns, each with an area of 50 cm^2, is positioned perpendicularly to a uniform magnetic field that increases its magnitude at a constant rate from 2 T to 6T in 2 sec
Explain octahedral and square planar complex : How many unpaired electrons can Co(II) possibly have in a tetrahedral, octahedral and square planar complex

Reviews

Write a Review

Chemistry Questions & Answers

  What pressure is exerted by gas d

A mixture of four gases exerts a total pressure of 860 mm Hg. Gases A and B each exert 220 mm Hg. Gas C exerts 110 mm Hg. What pressure is exerted by gas D?

  Compute the capacity factor for decane

Calculate the capacity factor for decane on HP-1 column (25 m length, 0.25 mm I.D., 0.5 mkm film thickness) at 120 C. Explain.

  Explain how are these different wavelengths generated

Each has a unique set of wavelengths associated with it, how are these different wavelengths generated

  1 a laboratory column is filled with soil and then

1. a laboratory column is filled with soil and then saturated with water. the data arethe head loss through the soil

  A gaseous system undergoes a change in temperature and

a gaseous system undergoes a change in temperature and volume. what is the entropy change for a particle in this system

  Define why tea boils at over boiling point of water

Explain why tea boils at over boiling point of water and explain how this is related to the drop in vapor pressure observed.

  What is the total pressure in the flask

A 1.20 sample of dry ice is added to a 745 mL flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 735mmHg .

  Define what is the molarity of the solution

In the laboratory you dissolve 16.7 g of barium chloride in a volumetric flask and add water to a total volume of 125 mL. What is the molarity of the solution

  State the buret is misaligned with the drop counter

The buret is misaligned with the drop counter so approximately 10 drops of NaOH are added to the HCl before they are counted

  A mixture of non-glucose components in blood is the solvent

The mass percent of glucose(C6H12O6) in human blood is 0.102%. The density of human blood @ 37 C is 1.08 Kg/L. Assume the mixture of non-glucose components in blood is the solvent.

  Explain a chemical engineer places a mixture of noble gases

To prevent the presence of air, noble gases are placed over highly reactive chemicals to act as inert "blanketing" gases. A chemical engineer places a mixture of noble gases consisting of 5.25 g of He, 14.6 g of Ne

  Evaluate the proportion by mass of lithium in kunzite

Kunzite is a mineral containing lithium (Li) and has the empirical formula LiAlSi2O6. Calculate the proportion by mass of lithium in Kunzite.

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