Recent content by tigerwoods99

so it adds potential energy as well?

Homework Statement What happens when gas is heated? Is all of the absorbed energy converted to kinetic energy? or is some of the absorbed energy converted into potential and some into kinetic energy? Homework Equations The Attempt at a Solution My teacher said the correct answer...

Homework Statement Which of the following is a representative particle? a. cation Incorrect b. all of these particles Correct c. anion Incorrect d. atom Incorrect Homework Equations The Attempt at a Solution I am trying to understand why all of these are...

Ah ok, so then I guess A would be correct, correct?

Homework Statement Of the following, which correctly shows an ion pair and the ionic compound the two ions form? Homework Equations a. Fe3+, O3+ = Fe2O3 b. Cr3+, I- = CrI c. Cu2+, O2- = Cu2O2 d. Sn4+, N3- = Sn4N3 The Attempt at a Solution a. Fe3+, O3+ = Fe2O3...

Homework Statement What type of hybridization occurs in the orbitals of a carbon atom participating in a triple bond with another carbon atom? The Attempt at a Solution I honestly thought it would be sp3 but it turns out to be sp. Can someone explain this to me? Thanks!

Oh. How do I do it using atomic mass?

Ok so here is what I have right now: 82p, 122n --> 204 mass number (.0137) % 82p, 124n --> 206 mass number (.2625) % 82p, 125n --> 207 mass number (.2082) % 82p, 126n --> 208 mass number (.5155) % (204*.0137) + (206*.2625) + (207*.2082) + (208*.5155) = approximate atomic mass of lead...

Yea that makes sense. How did you get the 203.9... I got it being something around 207.

Alright, but I am still not sure where I am headed with this. I got the right number correct? It's just a matter of explaining why this number is only an approximate. Thanks everyone

Ok so this was my starting data 82p, 122n 1.37% 82p, 124n 26.25% 82p, 125n 20.82% 82p, 126n 51.55% So the reason this calculation is an approximate is because the atomic mass did not take into consideration the electrons, is that correct? Or why is it an approximate, even with the...

Ok, So i got that 207.1912 is the approximate atomic mass of lead. Now i just need to figure out why this number is only an approximate.

is it 204*0.0137? = 2.7948 ?? I'm not really sure what you asking me to do.

82 ?

I'm not sure... it says 204. http://www.wolframalpha.com/entities/isotopes/lead_204/2y/re/x8/