DWelsh

Thank you for your help. I can see that this is just simple trigonometry now.

I'm taking an engineering intro class, and this problem has me stuck: "Vector R in Fig. 4.9 is the difference between vectors T and S. If S is inclined at 28 degrees from the vertical and the angle between S and T is 32 degrees, calculate the magnitude and direction of vector R. The magnitude of S and T are 19 cm and 36 cm, respectively. " Fig. 4.9 Is simply three lines pointing diagonally downward from the top right, with R being horizotal, T below R, and S below T (sorry, I cant find a picture to upload). I only have pre-calc under my belt (no physics) but I feel like this shouldn't be to hard to understand. I'm just finding it impossible to figure out HOW to solve this. I have access to the answer:(R = 18.8 cms, direction is horizontal) but I really need to know how to do it. Any help is greatly appreciated. Thanks

I know that chlorine is volatile on its own, but when in an ionic bond with sodium, the compound isn't. However, since sodium chloride dissociates in water, and the chlorine ions are no longer bonded to sodium, is it possible for any chlorine to vaporize when boiling salt water?

Thank you for the thorough input. I will definitely be testing for acetic acid from now on using the baking soda method. I feel like copper acetate makes more sense, since I used a vinegar mixture to wash the distilling equipment and then rinsed well before distilling.

I have about a gallon of ethanol that may be contaminated with a small amount of copper sulfate. I am wondering if anyone in these forums can tell me how I can remove the copper sulfate completely (not just the copper ions). I have the means to re-distill the ethanol if distillation will leave the leave the copper sulfate behind. Any information is appreciated.