To solve this we use the dilution equation used in chemistry,
M1 V1 = M2 V2
where M1 is the concentration of the stock solution, V1 is the
volume of the stock solution, M2 is the concentration of the new solution and
V2 is its volume.
M1 V1 = M2 V2
1.25 M x V1 = 0.500 M x 180 mL
<span>V1 =72 mL of the concentrated solution</span>
<span>Therefore, the correct answer would be option C.</span>
Answer: Yes
Explanation: Silicon is never found as a free element naturally, meaning it always occurs with other elements.
I believe this topic is quantitative chemistry but I need the equation to work this out sorry
Shale actually forms in the part of the rock cycle called compaction.