Recent content by JEscribir

Score, I wasn't to sure, but thanks for the confirmation.

Doing a lab on the computer we received the data of a hydrate to be .1989 g and the dehydrate .1271 g last mass of water evolved from reaction .0718g. We heated CuSO4*nH20 and we needed to find n. I changed the anhydrate and water to moles then dividing the number by the smallest amount of moles...

what do you mean by solution?

Yeah I emailed my teacher because I was freaking out since I could have sworn I did it right. Other people have already finished the assignment and no one has pointed out the supposed mistake to be revised that is why I am so skeptical.

The actual problem that I don't understand says " how many moles of C2H3Cl3O2 molecules are in 100.0 g chloral hydrate (C2H3Cl3O2)?" So that's to four sig figs and chloral hydrate has a molar mass of about 165.4 g/mol. I divided 100.0g / 165.4 g per mol to get about .6064 moles, but I'm...

Can someone show me how to calculate the number of moles of a given compound's molecules when given the mass in grams of the compund sample? I am kind of confused by this because at first I thought it just asked for me to convert the grams into moles, but that isn't exactly what is being asked.

Thank you for the unit correction, it is important( it was an embarrrasing mistake :frown: ). Let me review, the time( from launch till fall) I get should be divided by two to get the distance: so would I do d=1/2 *a*((t^2)/2) ? thanks

I need to find the height a rocket travels(bottle rocket). If I use this equation, ignoring air resistance, etc... I should use a stop watch from the time of launch till it hits the ground equaling t. a=9.81 m/s. Is that the correct way to use the formula for this excerise? Is there...

I know what the net forces angle and magnitude is... I need to find the magnitude of the original forces(3 of them) which are added to get the net force; All the original forces are at fixed poistions and I do know their Angles; How would I find the the original forces magnitude's?

Given the net force how would I go about solving for the original vectors that are being added?

I think Science and Religion go hand to hand. There is tons of science in the Judo-Christian Bible and Islam Quran(Koran); not necessarily very specific to things like quantum mechanics or higher level of mathematics but non the less its still impressive and poetic. Nowadays there are a lot of...

okay, thanks

I was wondering if anyone had any links that could show me some Leibniz theroems or maybe a bio. Also, I was wondering, since I don't really know to much about Leibniz Calculus, what would be some major distinctions between Newton's and Leibniz's Calculus, if there are any? And what would...

I never knew that, Thanks.:smile:

Sorry, I have just found the LaTex math typesetting post on this site.