An analytical chemist is titrating 221.6 ml of a 0.2800 M solution of dimethylamine ((CH3)2NH) with a 0.2700 M solution of HNO, The pK, of dimethylamine is 3.27. Calculate the pH of the base solution after the chemist has added 190.6 ml of the HINO, solution to it.

Asap! how do you lengthen a pattern piece? (family and consumer science, sewing)

Aradio signal from a gps satellite take only about 0.067 seconds to reach a gps reciever. if the speed of light is about 300,000km/s, then approximately how far away is the reciever from from the satellite?

I'm learning about the periodic tables and what each subject's configuration is. for example, hydrogen is 1s^1, but i don't understand how you get that. can someone me understand how to figure out how to figure this out? sorry if the question makes no sense, but it would really a lot if you could me understand! you so much if you can!