Find out how much heat is evolved or absorbed

Assignment Help Chemistry
Reference no: EM13266465

Determine how much heat is evolved or absorbed when 25.0 of lithium iodide completely dissolves in water. Lithium iodide has a lattice energy of -7.3 X 10^2 kJ/mol and a heat of hydration of -793 kJ/mol.

Reference no: EM13266465

Questions Cloud

Define what is the molar concentration : What is the molar concentration of 2.0 grams of sodium chloride brought to 0.25 L using water
Determine the coefficient of linear expansion : If a material increases it's length from 160m to to 163.20m when it's temperature is raised 160 degrees C, determine the coefficient of linear expansion
Explain how much concentrated solution would take to prepare : How much concentrated solution would you take to prepare 1.25L of 0.120M HNO3 by mixing with water? Nitric acid is usually purchased in a concentrated form that is 70.3% HNO3 by mass and has a density of 1.41 g/mL
Depict a complete lewis structure for the conjugate acid : Draw a complete lewis structure for the CONJUGATE ACID of Nitromethane (condensed formula CH3NOOH). Draw a complete lewis structure that shows all bonds, unshared electron pairs, and minimized formal charges where appropriate.
Find out how much heat is evolved or absorbed : Determine how much heat is evolved or absorbed when 25.0 of lithium iodide completely dissolves in water. Lithium iodide has a lattice energy of -7.3 X 10^2 kJ/mol and a heat of hydration of -793 kJ/mol.
Compute the total work done by the air : Initially at a temperature of 89.0?C, 0.300m3 of air expands at a constant gauge pressure of 1.40×105Pa to a volume of 1.43m3, Compute the total work done by the air
Explain what is the millimolar solubility of oxygen gas : What is the millimolar solubility of oxygen gas, in water at 16 , if the pressure of oxygen is 1.00 ?
Explain rank neohexene and t-butylacetylene : Rank neohexene, t-butylacetylene, and di-t-butylacetylene in order of acidity.Rank the following compounds from least acidic to most.
What electrical parameter does an ohmmeter measure : WHAT ELECTRICAL PARAMETER DOES AN OHMMETER MEASURE AND WHAT ARE ITS UNITS. SHOW BOTH NAME AND SYMBOL FOR THE PARAMETER AND ITS UNITS.

Reviews

Write a Review

Chemistry Questions & Answers

  How many ml of sodiun hydroxide are needed

How many mL of 0.220 M of NaOH are needed to completely hydrolyze 2.40 grams of propyl acetate.

  Explain a temperature will he atoms have the same crms value

At what temperature will He atoms have the same Crms value as N2 molecules at 25 degrees Celsius? Solve this problem without calcularing the value of Crms for N2. Crms is the root mean square speed.

  State absord water to form the decahydrate salt

sample of anhydrous salt sodium sulfate Na2SO4 is allowed to absord water to form the decahydrate salt.

  State use the density of titanium to calculate the mass

A titanium bicycle frame contains the same amount of titanium as a titanium cube measuring 6.6cm on a side. 1) Use the density of titanium to calculate the mass in kilograms of titanium in the frame.

  State the standard molar enthalpy and entropy

The standard molar enthalpy and entropy of the denaturation of a certain protein are 512 kj/mol and 1.60 kj/K mol.comment on the signs and magnitude of these quantities , and calculates the temperature at which the process favors the denatured sta..

  Is incorrectly calculated quantity over or under estimated

The calculations are based on the principal components of meat being fat ( acetone soluble) and protein (acetone insoluble or fat-free meat in report sheet ). ... information, the calculations correctly calculate what quantity, % fat or % fat-free..

  Compute the time required for the system to reach

A certain substance, intially present at 0.950 M, decomposes by first-order kinetics with a rate constant of 1.25 x10-2 mol m-1 s-1. calculate the time (in seconds) required for the system to reach a concentration of 0.431M

  Calculate the final temperature of the mixture

A 29.0-g sample of water at 260. K is mixed with 48.0 g water at 300. K. Calculate the final temperature of the mixture assuming no heat loss to the surroundings.

  Derive the general expression for the work per kilomole

Derive the general expression for the work per kilomole of a van der waals gas in expanding reversibly and at a constant temperature

  How many grams of dry nh4cl need to be added

How many grams of dry NH4Cl need to be added to 1.80L of a 0.400M solution of ammonia, NH3 , to prepare a buffer solution that has a pH of 8.90? Kb for ammonia is 1.8*10^-5.

  Determining the de broglie wavelength

What is the de Broglie wavelength of a 145 g baseball traveling at 30.0 m/s (67.1mph)? Is the wavelength much larger or smaller than the diameter of an atom .

  State what will the final concentration of nadh

alcohol dehydrogenase. Assume all of the ethanol gets converted to acetaldehyde.a) What will the final concentration of NADH be in the solution?

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