Chemistry Forum

a. inc
b. dec
c. dec
d. inc
e.dec
f. inc
Are these now correct? It's entropy of the universe by the way.

For each of the following processes, tell whether the entropy of the universe increases, decreases, or remains constant. a. Solid NaCl is dissolved in water at room temperature. b. A saturated solution of NaCl is cooled, causing some solid NaCl to precipitate. C. Water freezes. d. Carbon tetrachlori...

@Dhamnekar Winod, I think he's pertaining to my answer in letter a. Your answer is correct actually. I forgot to balance it, thank you for reminding me.

Thank you for the time and effort. I really appreciate it. But may I know how did you compute letter b and c? I really want to know how..

A titration analysis was done to determine the arsenic acid (H3AsO4) content of an impure sample. The titrant used is a 0.454 M NaOH solution. a. Give the balanced equation of the reaction. (Hint: consider arsenic acid to fully dissociate; H3AsO4 → 3H+ + AsO43-) To prepare the analyte for titration,...