Calculate the ph of a 0.40 m solution of sodium acetate (nach3coo) given that the ka of acetic acid (ch3cooh) is 1.8 x 10-5.

0.2348 grams of pbcl2 used to form 44.0 ml of solution.

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?