Recent content by JM92

Right, didn't notice that. Do you have any suggestions on how I could properly start this then? Thank you!

Homework Statement I did a surface tension experiment with n-butanol in water using the capillary rise method. Using my data and the Gibb's adsorption equation, I found the number of moles adsorbed at the surface per unit area to be n/A = 5.012 x 10-3 mol⋅cm-2. I also calculated the radius of...

There must be a way.. This question didn't even provide so much as the identity of the product. Also, this question seems to have been used for at least 7 years because a Google search of it shows results from 2006 :P (couldn't find any answers, however), so it must be answerable for it to not...

Homework Statement One often stated advantage of ethanol/water as a recrystallization solvent is that the mixture behaves like ethanol at reflux and like water at room temperature or below. Assuming that 24 mL of the solvent is used per 1 g of crude product and recrystallization and recovery...

Homework Statement We are given the fact that 0.12 mol NaOH reacts with 0.015 mol methyl salicylate (C8H8O3) to form disodium salicylate (C7H4Na2O3). We're asked to calculate the mole ratio of NaOH to C8H8O3, identify the limiting reagents, and find the theoretical yield. Homework Equations...

Thank you:smile: I'm so paranoid haha..

Yesterday in a school lab experiment, I accidentally splashed a really small amount of potassium dichromate solution (0.02000mol/L) on my hand. By "small amount," I mean a tiny drop that can't even visibly "run" due to gravity. Of course, I washed it off right after for a good amount of time...

Ohh! I was looking at it backwards, then. With Ff in the opposite direction, I got the correct answer. Thank you very much!

Hi, nice to meet everybody here at physicsforums.com! I'm JM92 and I have a physics problem I need help with. Homework Statement Find the smallest value of the mass M for which the system will remain at rest given that the coefficient of static friction is 0.100...