text: chart of sg of hydochloric solution vs wt %?   you can try find and download "chembuddy-casc" at the net. i forgot what the web address, but it's not hard to find just google it. for the free version there's only some substances, but hydrochloric acid (if that what you mean) is one of them. that program is very easy to use. just input the % wt then the sg/density will automaticaly come out.  other option : you can try find it at "perry's - chemical engineer's handbook"