/sci/ - Science & Math

Hey /sci/. Need your advise. It's 3.01 am where I am and I just got out of bed. I went to bed at 10.30pm. Not sure if I slept at all. Anyway I couldn't sleep, and I have major maths exams in 2 weeks, literally every day counts. I had my alarm set for 8 am

Should I

1. Wait a few minutes/do something then go back to sleep for 3-4 hours - assuming I manage to sleep? (I don't have any melatonin pills)

2. Drink some coffee and start my day's study 5 hours early

Your advice much appreciated.

>>5565211

If I don't know the volume of a solution, how can I calculate the molarity?

Say I have an equation and I want to find out the molarity of MgCl, but I only know that 15g of Mg are used and 180 ml of HCl are used.

2Mg + 2HCl -> 2Mg + H2

>>3645699
Doesn't this video address exactly what these kind of threads tend to be about? Scientific elitism? Counterproductive people. Right brainers and left brainers, science needs both and all the inbetweeners.

Hey /sci/

I have to do this Algebra 4 class online and there's very little study material. I just can't learn without a step by step explanation.

Are there any good websites that would explain Algebra 4 equations step by step? Not really looking for paragraphs to read, more of a visual tutorial.