Homework Statement
A Chemist wishes to prepare 250mL of buffer that has a Ph of 4.50. Starting with 100mL of 0.12 mol L acetic acid and a supply of 0.10 mol L NaOh.
1) explain how this can be done
3) how much 0.20 molL NaOH must e added to this buffer to raise the pH to 5.1?
3) if the...
Oh man I don't know how to thank you guys enough lol, really thanks a million for all the help, I officially love this forum :) :) :)
and yes I know I should know some math, but yeah, its sort of my achillies heel with Univ. I know my Bio/Chem like a pro, hell even physics I'm good at because...
so when I take a differece of cubes of the top I get
√x(1-√x)(12+√x+√x2 Over 1-√x
then the 1-\sqrt{x} cancel and then when I sub one in for all the X's I end up with 3/1 which is the right answer.. um yeah I'm confused
Thats the thing! I don't know how to factor a difference of cubes, I got thrown into calculus and I don't know math, and my teachers won't help me, do I cancel out all the Root X's?
Homework Statement
Evaluate this Limit
lim┬(x→1)= (√x-x2)/(1-√x)
The Attempt at a Solution
So What I did at first was obiviously sub'd in one and got "0"/0, undefined. So then I started to try and simplify the function by multiplying it by its conjugate, but I got some...
Homework Statement
Find the relationship describing the volume (V) of a cube as a function of the length of the diagonal going through the cube (d). evaluate it for a diagonal length of d = 1.2.
I seriously don't know where to start, I'm taking Biology, but I have to take calculus as...
Heisenbergs..HELP PLEASE
Homework Statement
Does it take more work to increase an electron’s
speed from 0.5c to 0.9c, or from 0.9c to 0.95c?
i don't know where to start...
If an electron is traveling at 1 km/s, how
uncertain is its position?
I did the Px X=h/2pi and solved for...
OH wow I solved it all! thank you SOOO much Sammys! how about you replace my teacher? haha! really though thank you so much for such a speedy and helpful response, much appreciated :D!
Rotational Accel/Radians <<Solved>>
Homework Statement
Question 1)
18. Convert the following measurements to radians.
c) the motion of an hour hand in 4.4 h = 2.3 Rad
d) Earth’s rotation in 28.5 h = 7.5 Rad
<<<<<<figured it out, thanks SammyS for that obivious yet overlooked detail...
its not really a MASSIVE dome but they have a big room for that stuff, they just dumped a tonne of money now into what I heard was a wind tunnel and quite a few labs. The place is expanding faster than you could keep track of haha!
U.O.I.T in Oshawa may not have the long history of some other schools, but its gaining an amazing reputation at an exponential rate, plus its a huge school, modern EVERYTHING and the school is all based around the sciences and engineering (along with the token Psych,law, business)
I'm halfway through my University prep year (its a univ. run course you can take if you needed the pre reqs) and I have to apply now to university but I don't know what to take...
The issue is I don't know what kind of job I will get with each course...
The course I was looking at...