Explain hess''s law to calculate the enthalpy

Assignment Help Chemistry
Reference no: EM13516204

The ionization energy for sodium is 496 kJ/mol. The electron affinity for chlorine is -349 kJ/mol. Use these values and Hess's law to calculate the enthalpy for the following reaction: Na(g)+Cl(g) -> Na+(g) + Cl-(g)

Reference no: EM13516204

Questions Cloud

Writing assignment operating leverage : Writing Assignment Operating leverage
How do structured interviews differ from unstructured : Hoshimi has planned to carry out structured interviews. How do structured interviews differ from unstructured interviews? Which would be more appropriate for this study and why and what are the possible advantages and disadvantages of using face to..
Explain what mass of nah2po4 must be added to na2hpo4 : What mass of NaH2PO4 must be added to 1.20 L of 0.20 M Na2HPO4 to make a buffer solution whose pH=6.90? pKa2(H3PO4)=7.21.
Calculate how far underwater you must dive : When scuba diving, you must equalize the pressure inside your body with the water outside every few meters you dive downward or swim upwards in order to avoid serious health complications. Calculate how far underwater you must dive
Explain hess''s law to calculate the enthalpy : The ionization energy for sodium is 496 kJ/mol. The electron affinity for chlorine is -349 kJ/mol. Use these values and Hess's law to calculate the enthalpy for the following reaction: Na(g)+Cl(g) -> Na+(g) + Cl-(g)
What is the gauge pressure of ocean water : What is the gauge pressure of ocean water at a depth of 73.6 m? The density of ocean water is 1035 kg/m3
How to calculate the concentration of fe2+ in a solution : For FeCO3 dissolving in acid solution, the value of Keq is 0.66, calculate the concentration of Fe2+ in a solution obtained by treating solid FeCO3 with 0.315 M HNO3.
What is the change in the frequency heard by an observer : A car moving at 36 m/s passes a stationary police car whose siren has a frequency of 500 hz. What is the change in the frequency (in Hz) heard by an observer
Explain what is the chemical formula for the salt : A brown colored salt contains a cation from Group 3 (Fe, Mn, Ni). It has no reaction with concentrated H2SO4 and produces a soluble product with acidic AgNO3 and acidic BaCl2. This salt is not water soluble. What is the chemical formula for this s..

Reviews

Write a Review

Chemistry Questions & Answers

  Which of the following proves the law of definite proportion

Which of the following proves the law of definite proportions?

  Determine the temerature at which water boils on a day

Find the temerature at which water boils on a day in the mountains when the barometric pressure is 593 mmHg. (Gien the heat of vaporization of water is 40.79 kJ/mol).

  Explain a mole of hydrogen atoms contains

A mole of hydrogen atoms contains 6.02 x 1023 atoms and occupies 22.4 L. How many hydrogen atoms are contained in 25.00 mL of this gas?

  State the presence or absence of nickel

A biological sample was submitted to you lab for a nickel assay. Assume you are assaying a 2.06 g tissue sample for the presence or absence of nickel at the 0.1ppb (m/m) level

  How resonance structures of the allylic cation formed

Draw both resonance structures of the allylic cation formed when one molecule of adds to the symmetrical diene, 3,4-dimethylhexa-2,4-diene.

  Explain what is the metal ion in a metal nitrate solution

What is the metal ion in a metal nitrate solution M(NO3)3(aq) if 90.52g of metal was recovered from a 4.00 hr electrolysis at a constant current of 35.0A

  Explain why acetone in the cyclohexane would invalidate

Explain why acetone in the cyclohexane would invalidate the experiment?

  What mass of solid sodium formate must be added

What mass of solid sodium formate (of MW 68.01) must be added to 140 mL of 0.57 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 4.16? Ka = 0.00018 for HCOOH.

  Non-charged nitrogen bases are used in various reactions

Strong, non-charged bases are useful in base-catalyzed reactions. Many non-charged nitrogen bases are commonly used in various reactions. Perhaps the strongest non-charged base is shown below

  Write a lewis structure for each of the following molecules

Write a Lewis structure for each of the following molecules.

  State what mass of agbr would precipitate from the mixture

What mass of AgBr would precipitate from this mixture? (Ksp of AgBr is 5.4x10^-13 & Kf of Ag(CN)2^1- is 1.0x10^21)

  Calculate molality of a normal creatinine level in blood

Creatine is a by-product of muscle metabolism, and creatinine levels in the body are known to be a fairly realiable indicator of kidney function.

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