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dear /sci/ why the FUCK is my 10 molarity HCl turning fucking yellow? it's clear then i pour it into glassware and it turns yellow. my equipment is fucking clean. what the fuck is going on? is the HCl being oxidized producing chlorine? pic semi related. not that yellow, but fairly yellow.

Can one of you bro's solve this equation for me? I'm trying to find the length of EC to the nearest unit.

does anybody have a pdf of Linear Algebra Modern Introduction 3rd Edition by Poole? I've been looking everywhere and can't find one

If a mathematical sequences starts at n=2 (ad infinium) is the odd subsequence still n=3, n=5, n=7 and the even n=2, n=4, n=6 since that would mean the first term is even?

Okay I'm really desperate right now, I'm trying to solve that damn excercise for 3 days now already, /sci/ is my last hope, plz you math geniuses, what is x goddamnit? >pic related

I just proved that pi = 4. Where can I pick up my Fields Medal?

Am I ever going to reach one without rounding? Will I reach 0.999... which equals 1?

Heya /sci/ I'm in a bit of a dilemma here. I got this question I have to solve, however, when I searched the internet for answers it came up with such answers I have never heard of. Here goes: What is the number of years required for an investment to double with a rate of return i=7%? How I solved it: F = future value P = Present value i = rate of return n = number of years I used the known formula, F = P(1+i)^n I let P = 2F so that the investment made in the present is doubled in the future. However, the internet said to use the rule of "72" which I never heard of, at least in my course. Thoughts mates?

Is it possible that the Big Bang was actually a "Big Drop"? That is to say that matter was created at the boundaries of this universe and now everything is falling/ being pulled by gravity to the center? It seems that things in space are accelerating toward a point; not just being propelled from initial blast as powerful as the Big Bang is said to have been. And if this hypothesis is valid then what happens when we get to the center? I'm not a science-minded person so maybe there is an obvious law refuting this.

Hey, /sci/ how would I figure out which one is correct or not? I know how to find the vertex, but that's about it. How would I take an equation, after finding the vertex, and then graph it? Pic related: what I'm trying to answer

Anyone have a PDF of Algebraic Graph Theory by Godsil and Royle? I need it to study for the upcoming USAMO.

I'm having a tough time finding a straight answer. IS GLYCINE POLAR OR NON POLAR? My textbook says polar, but a convincing number of charts and open ended questions state that it is non-polar.

God's gift to STEM general What have you written in MATLAB?

Is it easier to remember patterns of single digit numbers if there are an even number of them compared to an odd number? ...or are multiple sets of 3 numbers, the easiest to memorize. Thinking about google's two-step identification and phone numbers. Is there a specific reason why google has a six digit number when it only allows one mistake?

Hey /sci/, sophomore engineering student here, looking a little advice. It's about time I start looking for an internship, and I'd like to know what kind of things companies look for in interns and and their résumés. I've never written a résumé before so I don't really know what I'm doing.

Let ABC be an acute triangle. Let P be a point inside ABC such that angle(APC)-angle(ABC)=angle(APB)-angle(ACB) Let D,E be incenter of triangle APB, APC Let BX be the reflection of BC across BD Let CY be the reflection of BC across CE Prove or disprove, AP, BX, CY meet at a point (i.e. AP, BX, CY are concurrent)

so /sci/, why is a neutron star an important discovery?

Hours have been spent trying to figure this out

Please /sci/, I'm desperate. I need a cure for homosexuality. I just want to be straight. I want to live the easy life - finding a woman attractive that I can love and be loved by. No worrying about society judging you. No worrying about being ostracized. Not feeling defective and like a waste of space, and a failure to my parents. I honestly feel if I don't find a cure I will end up killing myself. I just can't take it anymore. Please, are there any psychologists in America who can help fix me, with a reasonable success rate? I don't care about gay propaganda saying it's impossible - I know some people claim it can be done, without anything crazy like a lobotomy. If anyone knows any peer reviewed journals of effective techniques, please, post them so I can read them. Please give me hope...

"time is invented to make motion look simple" - Albert Einstein WTF DOES THAT MEAN