How many milliliters of concentrated ammonia, 15 M NH3, would you dilute to 250 mL to produce 0.162 M NH3?
To find out how many milliliters of concentrated ammonia, 15 M NH3, you would need to dilute, we can use the equation for dilution:
C1V1 = C2V2
Where:
C1 = Initial concentration of ammonia
V1 = Initial volume of ammonia
C2 = Final concentration of ammonia
V2 = Final volume of ammonia
Given:
C1 = 15 M
V1 = unknown (what we're looking for)
C2 = 0.162 M
V2 = 250 mL
Substituting the values into the equation, we get:
15 M * V1 = 0.162 M * 250 mL
Now we can solve for V1:
V1 = (0.162 M * 250 mL) / 15 M
V1 ≈ 2.7 mL
Therefore, you would need to dilute approximately 2.7 mL of concentrated ammonia (15 M NH3) to 250 mL to produce a final concentration of 0.162 M NH3.