chloroform and acetone form an azeotropic mixture of composition 20%acetone and b.p. 64.7 .If a chloroform -acetone mixture containing 90%chloroform in the initial distillate is likely to match the value of

Hi, I am redecorating a bathroom. The house was built around 1910. It appears that there may have been railroad tile on the lower half, but the mortar lines are still on the wall. Is there a way to smooth those lines down so that I can paint over it?

I need to add a drain and there is existing schedule 40 plastic pipe, can I cement abs plastic pipe to the schedule 40 using multi purpose cement?

I'm working on a drawing for my comic and I've drawn it in pencil or blue pencil, and I'm using a light box. I trace over it with my pen and look at my final result hopefully to see smooth lines, but it is not smooth lines. There wiggly and out of shape. Does anybody know how to get nice smooth...