Answer:
B) decreasing entropy is a non-spontaneous process
Explanation:
<span>C represents the displacement ONLY if it is the VECTOR arrow from P to W.
Usually if the arrow on the diagram has JUST a letter listing, that letter stands for the SIZE or LENGTH of the VECTOR arrow. In order to have the letter represent the VECTOR, itself, it must have a symbol of a "half arrow" placed above it.</span>
El ácido sulfúrico es un ácido fuerte y por eso disocia completamente. La concentración de H+ será igual a la concentración de ácido sulfúrico (0.000475 M).
Para encontrar el pH, calcula -log[H+] = -log(0.000475) = 3.323
Para encontrar el pOH, sabes que pH + pOH = 14, y por eso pOH = 14 - pH = 14 - 3.323 = 10.677.
Answer:
1) Dissolve the crude substance in a minimum amount of hot solvent.
2) Filter the hot solution to remove the solid impurities (if present)
3) Allow the solution to cool slowly so crystals form.
4) Filter the crystals.
5) Dry the crystals
6) Weigh the crystals into a tared flask.
Explanation:
Recrystallization is a method used in chemistry to obtain crystals having a high degree of purity for the purpose of analytical or synthetic laboratory work.
