Chemistry College

Use the data given below to construct a Born-Haber cycle to determine the second ionization energy of Ca. Δ H°(kJ) Ca(s)→Ca(g) 193 Ca(g)→Ca (g) e− 590 2O(g)→O2(g) - 498 O(g) e−→O−(g) -141 O−(g) e−→O2−(g) 878 Ca(s) 12O2(g)→CaO(s) -635 Ca2 (g) O2−(g)→CaO(s) - 3414
A.1010 kJ
B.1508 kJ C.-1514 kJ D.-3027 kJ E.1757 kJ

Answers

Answer 1

The second ionization energy of Calcium is A)1010 kJ.So,correct option is A.

We have some data like

the enthalpy of formation of calcium oxide(CaO) as   -635 kJ,the first ionization energy of calcium  IE₁= 590 kJ,the first electron affinity energy of oxygen EA₁ = -141 kJ,the dissociation energy of oxygen DE = 249 kJ,the second electron affinity of oxygen EA₂ = 878 kJ,the lattice energy of calcium oxide(CaO) U = -3414 kJ

For calculating the second ionization of calcium we need to write down the proper Born-Haber cycle equation which is

Δ[tex]H_f[/tex]= SE + IE₁ + IE₂ + DE + EA₁ + EA₂ + LE

=>-635KJ=590KJ+(-141KJ)+IE₂ + 249KJ+878KJ-(-3414KJ)

=>IE₂= - 590KJ + (-141)KJ  - 249KJ  - 878KJ + 3414KJ  -635KJ

=>IE₂= -2352KJ + 3414KJ + 52KJ

=>IE₂=1010KJ

Hence, our required  second ionization energy of Calcium is A)1010 kJ.

To know more about Born-Haber cycle, visit here:

brainly.com/question/6545392

#SPJ4

Related Questions

How to recover Aluminum from brass through melting

Answers

Answer:

you can do so by pouring it into a vibrating seperator


A carbon atom has a relative atomic mass of
13.3. 60% of the carbon atom has a mass
number of 12.7, 30% of the carbon atom has a
mass number of 13.6, whilst the remaining 10%
has a mass number which is not known.
Calculate the mass number of the carbon isotope
which is 10% of the Carbon 13.3 atom.
Give your answer to 1 decimal place.

Answers

According to the claim, the carbon isotope that is 10% of something like the carbon 13.3 molecule has a mass number of 15.1.

Where can you find carbon?

The majority of carbon is kept in reservoirs, or sources, such rocks and sediments; the remaining portion is kept in the atmosphere, the seas, and living things. Through the respiration of both and animals, carbon is returned to the atmosphere. Burning things like wood, oil, and gas also releases it.

Briefing:

Since all carbon isotopes have an equal atomic mass of 13.3,

(0.60 * 13.3) + (0.3 * 12.7) + (0.1 * x) = 13.3

11.79 + 0.1x = 13.3

x = 15.1

To know more about Carbon visit:

https://brainly.com/question/13719781

#SPJ1

Calculate the percent composition of H3PO4

Answers

The percent composition of hydrogen, phosphorous and oxygen in phosphoric acid is 3.06 %,31.60%,65.31 % respectively.

What is percent composition?

Percent composition is defined as a convenient way to record concentration of solution.It is a expression which relates solute to solvent as,mass of solute/mass of solution ×100.There are two types of percentage composition percent weight by volume and percent volume by volume .

Percent composition of hydrogen=3/97.99×100=3.06%.

Percent composition of phosphorous=30.97/97.99×100=31.60%

Percent composition of oxygen=64/97.99×100=65.31%

Learn more about percent composition,here:

https://brainly.com/question/17505281

#SPJ1

In a double replacement reaction, why will two metals not combine with each other when products are formed

Answers

In a double replacement reaction, two metals will not combine with each other when products are formed because the metals form positive ions that do not attract.

The correct option is C.

What is a double replacement reaction?

A double replacement reaction is a reaction in which there is an exchange of radicals between two compounds when a solution of the compounds is mixed together.

In a double replacement reaction, a precipitate is always formed when the two solutions of the compounds are mixed together.

During a double replacement reaction, the metallic ions exchange their negative radicals to form new compounds.

In accordance with the law of charges, similar charges do not attract each other, hence, the opposite ions of the metals and the negative radicals are attracted to each other.

Learn more about double replacement reactions at: https://brainly.com/question/23918356

#SPJ1

Other Questions
As a person breathes, during the inhale part of the cycle air moves down the windpipe (bronchus) and through a constriction where the air speed doubles. If the air is traveling 46 cm/s before the constriction and we treat air as an incompressible fluid, determine the pressure drop in the constriction. Use the density of air as 1.29 kg/m3. in Pa A(n) ____ is a numerical summary of a sample. The Biggs Department Store chain has hired an advertising firm to determine the types and amount of advertising it should invest in for its stores. The three types of advertising available are television and radio commercials and newspaper ads. The retail chain desires to know the number of each type of advertisement it should purchase in order to maximize exposure. It is estimated that each ad or commercial will reach the following potential audience and cost the following amount:Exposure Cost (US$)(people/ad or commercial)TV commercial 40,000 16,000Radio commercial 28,000 14,000Newspaper ad 29,000 8,000The company must consider the following resource constraints:The budget limit for advertising is $200,000.The television station has time available for 6 commercials.The radio station has time available for 12 commercials.The newspaper has space available for 5 ads.The advertising agency has time and staff available for producing no more than a total of 20 commercials and/or ads.If this problem is formulated as an integer and also a linear programming problem (separately), the maximization ("Z", the optimal solution) of the exposure would be, respectively:a) Integer Programming: 497,000 ;Linear Programming: 513,000 ;b) Integer Programming: 457,000 ;Linear Programming: 497,000 ;c) Integer Programming: 513,000 ;Linear Programming: 457,000 ;d) Integer Programming: 497,000 ;Linear Programming: 457,000 ;e) None of the above What is the role of an independent auditor? What govt agency is tasked to enforce and administer laws and regulations regarding conduct of elections in the country? What is the smallest number divisible by 3? In the following gear train, Shaft A rotates at 200 rpm and shaft B rotates at 300 rpm in the directions indicated. Determine the speed of shaft C and its direction of rotation. N2 = 35; N3 = 25; N4 = 14; N5 = 46; No = 20; N, = 16 Deviation error of the magnetic compass is caused byA. a northerly turning error.B. certain metals and electrical systems within the aircraft.C. the difference in location of true north and magnetic north.certain metals and electrical systems within the aircraft. Joe wants to purchase a new 4-wheeler that costs $18,550. He decides to get it in installments plants but needs to leave an 15.25% down payment. How much will the finance charge be if he has a monthly payment of $250 for 10 years? ROUND TO THE NEAREST CENT! Is Cos 2x continuous? How do you identify congruent in SAS? What is the relationship between frequency and wavelength direct or inverse What is the relationship between frequency and energy direct or inverse? Find the first 5 terms of the sequence. How many terms does 3xy have? what is the essence of recursive programming? group of answer choices a function calling the call stack to compute the next iteration. a function calling itself until it reaches a base case. an iterative function called a factorial number of times. applying euclid's algorithm to an iterative function. In the process of , DNA is used as a template for making another type of nucleic acid called . The process begins when the enzyme binds to a region called the . What was the positive impact of Western education in India? hoffman is planning to enter the family's plastics business as soon as he graduates from high school. his parents have a job for him in their shop, and they all expect that hoffman will eventually run the business. hoffman has never questioned this career goal. according to erikson, hoffman's identity status is best described as enter your answer in the provided box.a solution is made by dissolving 0.100 mol of nacl in 7.05 mol of water. what is the mass percent of nacl? TRUE/FALSE. one advantage of a small business is multiple choice the ability to quickly adapt to customer needs. friends can barter for goods and services the business needs. colleges are more amenable to helping small businesses because they prefer working and writing about them rather than their larger counterparts. small businesses are more likely to employ part-time workers and use telecommuting.