5. Consider the equation for a saturated solution of potassium chromate:
K, CrO4(s)+ energy 5 2K+ (aq) + Cro. (aq)
A concentration vs. time graph for a saturated solution of K Cr0is shown below.
K+
Concentration
(M)
Cr02
Time
What happened at time t?
A. KNO, was added to the system.
B. K Cro. was removed from the system.
C. The temperature of the system was increased.
D. The temperature of the system was decreased.
Due to the stress at time t, will the solubility increase or decrease? Explain.

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

idk what is it? is this a question that you know the answer or u dont