Ionization Definition and 289 Threads

I'm fairly familiar with the design and operation of an ion engine, although I do have a two questions in regard to its operation. 1) Normally, an ion engine would be used in space (which is naturally a vacuum) and would output its given thrust. Prior to space flight, is there a need to...

acetic acid is a weak acid that ionizes in solution as follows CH3COOH--->CH3COO- + H+ if the freezing point of a .106 m CH3COOH solution is -.203 celcius, calculate the percent of the acid that has undergone ionization. here's what i did, i took .203 celcius=i)1.86 celcius/m (.106m)...

Homework Statement Does an AM radio station broadcasting at 750 KHz emit enough energy to ionize a hydrogen atom? Homework Equations Frequency = 7.5E+5 /s Ionization E of H atom = 2.18E-18 J Planck constant h = 6.625E-34 J-s AM Radio speed = c Energy AM radio wave = h*frequency...

Alright, so I'm looking into electron-impact ionization of Argon, and subsequently the collision ionization cross-section. While i have found articles that experimentally find these cross sections at different energies (energies of the electrons that is), such as here...

What is the definition of ionization? For example, in the case of Hydrogen atom, the Coulomb force is the long-range, so the electron and its wave function is always affected by the left proton. So the QUANTUM description is actually difficult and unclear. Could anyone explain to the the...

I have a couple questions on my homework that I am stuck on. 1. Write the equations that represent the first three ionizations of the aluminum atom. Be sure to include phases and charges. 2. Write the equations that represent the acquisition of the two electrons of the sulfur atom forming the...

Hey, I was wondering if anyone could help me out with this. I need to take the Bohr energy equation ( En= -2.178 x 10^-18) (Z^2 /n^2) and the Inoization energy equation ( IE= Einfinity - Eground state). I need to somehow modify the bohr energy equation that can be used to find the inonization...

Question: The first and second ionization energies of K are 419 kJ/mol and 3052 kJ/mol, and those of Ca are 590 kJ/mol and 1145 kJ/mol, respectively. Compare their values and comment on the differeneces. I'm thinking of two different ways of how to do this even though I think both are wrong...

A neon sign is a gas discharge tube in which electrons traveling from the cathode to anode collide with neon atoms in dicharge tube and knocks electrons off of them. As electrons return to the neon ions and drop to lower energy levels, light is given off. How fast would an electron have to be...

[SOLVED] Ionization and light I've been working on this problem and I'm not coming up with a reasonable answer. If the Bohr model is used, what frequency of light would be required for ionization of hydrogen? I know that \Delta E = h \nu, where E is energy, h is Planck's constant, and \nu is...

Question says: Approximately how much energy would be required to ionize all the hydrogen in the Sun? How does this ionization energy compare with the thermal energy of the Sun? (Assume the uniform density approximation. The ionization energy of a single hydrogen atom is 2.18e−18 J.) Am...

Need a formula for Ionization HELP! What is the greatest wavelength of radiation that will ionize an unexcited Hydrogen atom? If someone could give me a fomula to work with I'd be EVER so greatful! I've been working on this for HOURS.

Question: Aspirin is a weak acid. (a) Calculate pH of 0.2M solution of aspirin at 25 degrees celsius (Ka = 3.0 x 10^-4 at 25 degrees celcius). (b) Determine the percent ionisation (c) Explain qualitatively the effect of adding 0.01M hydrochloric acid to the aspirin solution. (d)...

for the following question: a proton capatures a negative muon (mass=207me). Find the ionization energy of the atom. my problem: the answer in my textbook says to use 13.6eV for the E1 ionization energy, but why? i thougth that that value is only true for hydrogen atoms, but that question...

Which alkali metal forms preferentially an oxide rather than a peroxide or superoxide? a. Na b. Rb c. Li d. K Of the following, which element has the highest first ionization energy? a. Na b. Al c. P d. Cl Are these correct? Thanks.

Which ionization process requires the most energy? a. P(g) --> P+(g) + e- b. P3+(g) --> P4+(g) + e- c. P2+(g) --> P3+(g) + e- d. P+(g) --> P2+(g) + e- Is it b. P3+(g) --> P4+(g) + e- because this is the fourth ionization energy (which requires highest amt.)...

Which element in each of the following sets would you expect to have the highest second ionization energy? How do I figure this out? a. Na, Mg, Al b. Na, K, Fe c. Li, Be, Mg Can you help me? Thanks

This is a post-lab question for my chemistry lab but it is kind of physics too so I thought I'd post it here (the other sciences sections don't much response).. It's confusing because the questions are supposed to go along with what we are learning in the chemistry lecture, but we're behind in...

PLEASE HELP! Ionization Energy Question Hello everyone, I am having some trouble with this question. If one of you could point me in the right direction i would be really grateful. 1. Since the ionization process takes an electron from its ground state to the zero level of the energy...

Hello everybody, just wondering if anyone could point me in the right direction for this question. Please and thanks. 1) Since the ionisation process takes an electron from its ground state to the zero level of the energy scale, the ground state energy calculated for the electron of the...

i need some helps...how does acid affect the ionization of water ? ...how does acid affect the ionization of water ? if there are more hydroximum ions in the solution,what will the change of ionization of water?

got a homework problem... What is the relationship between first ionization energies and metallic and non-metallic properties? no idea what they are talking about here.

So this is probably going to look like a ridiculously easy question, but I'm stumped. I have searched for hours looking for a formula to use, and I've given up on my text. Question: A 0.1 mol/L aqueous solution of weak monoprotic acid has a hydrogen ion concentration of 0.001 mol/L. The...

i need help with this homework question I am having problems with... Explain why the first ionization energy for sodium is much smaller than the second ionization energy for sodium.

How can you find the Ionization Energy if given the charge and electron level?

1. a) Arrange the following atoms or ions in order of increasing radius: Cl, S2-, K, K+, O b) Give an explanation for the position of S2- in relation to the atom or ion that comes just before and just after it. I was not sure that is why i am posting these.. my answer is...

Do Ionization Potential values include or exclude the work function of the electron removal process? For example: The IP value for hydrogen is 13.6 eV. Is the true IP 13.6 eV or 13.6 - WF (ca. 4 eV) = 9.6 eV roughly?

Can someone please help me understand the following question? The ionization energy of the outermost electron in Li is 5.390 eV. What is the effective charge seen by the outermost electron? (Li has 2 energy levels)

THEORY OF THE IONIZATION OF GASES BY LASER BEAMS could anyone help me about is theory ican't find it plase iknow i ask a lot :blushing: but sometime my mad don't work enough :confused:

Anyone know how to calculate the average spacing between successive ionizations of alpha particles? My case is with 4 MeV particles.

Could someone please explain the difference between a gas that has entered its plasma state and an ionized gas?

When metal oxides react with water, the oxygen generally ends up as the hydroxide ion, separate from the metal. In contrast, when nonmetallic oxides react with water, the oxygen ends up as part of the nonmetals species. What connection is there between this contrasting behaviour of metal and...

When metal oxides react with water, the oxygen generally ends up as the hydroxide ion, separate from the metal. In contrast, when nonmetallic oxides react with water, the oxygen ends up as part of the nonmetals species. What connection is there between this contrasting behaviour of metal and...

Hi I am trying to work out what ionization occurs passing laser light through air. I am trying to find out what the radius of ionized air would be, what distance it would cover (eg 1m, 2m etc...) and what the power of the laser would have to be. How would I go about working this out? Does...

excitation, ionization, TEMPERATURE?? When atomic electrons are excited or ionized, do they contribute to temparature rise?? If yes, what energy of the electron is significant in this case??

How do you go about calculating the ionization energies from atoms? Electron affinities? (KJ/mol) for example, "Calculate the change in energy from the first and fourth ionization energies of Be?" Recently on a test (CHEM AP HIGH SCHOOL), I had a question similar to this on an exam. I...

Which of the following atoms has the lowest ionization potential? a. 2 4 He b. 7 14 N c. 8 16 O d. 18 40 Ar e. 55 133 Cs The answer is e. Can someone explain the general concepts and reasoning behind this? Thanks, --YG

Greetings ! I have a little question. My teacher was talking about stable ions some days ago, he wanted to explain why do we have certain stable ions in ionic compounds and we don't have other ions. For example, we notice that the stable ion of Na (in its compunds) is Na+1 and not Na+2 or...

Please I need detailed information about the ionization of atomic hydrogen , quantum states , values of energies ... etc