Recent content by fishfish

Well, this is what I have so far : mass of acid = 0.7g average volume used for titration= 0.0295L nNaOH= cv =(0.095M)(0.0295L) [ the 0.095M is calculated by the way] =2.8x10-3 mol of base reacting with 0.7g of acid After this.. I used a ratio to solve for the...

Hi, I'm back again, sorry to be such a bother.. But I was wondering if it were possible to find the molar mass of the unknown salt (as our teacher instructed us to do) just from the given information. Since there's no concentration of the solid, how would it be possible to find the molar mass of...

Wait, since it's not accurate enough, then I assume that I can't follow through with Nickdk's solution then?

Oh really? Haha, I thought it was asking for something more difficult! Thank you :biggrin:

Homework Statement Hi, So I have this lab in which we had to titrate HCl with NaOH (of an unknown molarity) So here's the lab.. I decided to scan it because I'm not a good explainer at all, heh. The molarity of the HCl is 0.15M by the way What I was wondering is how to...

Would I use the formula v12 = v22 - 1/2ad? Am I using the wrong formula..? Because I seem to get this massive number as the acceleration..

Alrighty, I'll do that then :) Thanks so much!

Then what value should I take?

Haha, except now my values for Ag+ at eqilibrium are negative because we overtitrated the solution with excess KSCN... I guess I'll be taking the absolute value?

OH! Now I see! Thanks ! :D

So for the concentration of Ag+, I'm assuming that it's the number of moles of Ag+ (0.0013mol) divided by the ENTIRE volume of the solution? Which is 0.05L of Ag + 0.05L of Fe + 0.013L of SCN ?

Homework Statement Well we have this lab on equilibrium using titration. I found the lab here http://wikieducator.org/Chemistry/Equilibrium_Titration" So I'm kinda stuck on number 3c, where it asks what is the starting concentration of Fe3+. I don't know if I did number 3b right...

Wouldn't the initial velocity of the cannon be zero though since both the ball and the cannon start off at rest? If I were to find the v2 of the cannon though, how would I proceed with the rest of the solution?

Homework Statement A 3000kg cannon fires a 14 kg shell horizontally with a muzzle velocity of 450m/s. The cannon recoils for a distance of 2.5m before coming to a stop. What is the coefficient of friction between the cannon and the ground that it rests upon? mcannon= 3000kg mball=14kg...

When mixing orbitals, is it possible to have a s2p3 orbital ( or anything along the lines of having a s2shell)? Also, are any combinations of hybridization orbitals possbile? For example. BrF2+, would the hybrid orbital used be sp5d or something different?