Q:

What is the value of x, the acid concentration of the first solution?A) 0.05B) 0.10C) 0.15D) 0.20

Accepted Solution

A:
Answer:A) 0.05Step-by-step explanation:Let's summarize into an equation the information we can get from that table.We have 4 liters of an acid of an unknown concentration, let's call it (4x).We have 10 liters of an acid with known concentration of 0.40.And we have a total of 14 liters overall with a concentration of 0.3o.That's like a weighted average formula: 4x + 10 y = 14z Β  Let's replace the concentration values we know and solve this:4x + 10 (0.4) = 14 * 0.3 Β 4x + 4 = 4.2 4x = 0.2 x = 0.05So, the concentration of the 4 liters of acid on concentration X are in fact of concentration of 0.05.