actually... I think I'm right.
it would be nice for someone to confirm this though.
Ok, I am definitely victim to the use it or lose it crowd when it comes to math. This is a simple problem but I'm lacking the confidence my logic with it.
so, I want to make a 3L solution.
To make a 1L solution, I add 100mL of this 10X reagent with 900mL of water.
I must then add 700g of a powder to this solution. In the end, the final volume comes out to be 1400mL.
For the sake of my own curiosity, how do I go about solving this?
Here's what I've reasoned...
700g for 1400mL
to make 3000mL, 3000/1400 = 2.14
700g x 2.14 = 1498g
100 x 2.14 = 214mL of 10x soln
900 x 2.14 = 1926mL of water
~~~~ with the outrageous amount of powder, I should get 3L.
Am I right or wrong? Please help me out with this. thanks