SOLUTION: What volume of a 2.5 M stock solution of H3PO4 is needed to prepare 3.8 L of a 1.5 M H3PO4 solution? (1 point) Select one: a. 1.0 L b. 2.3 L c. 5.7 L d. 6.3 L

Algebra ->  Circles -> SOLUTION: What volume of a 2.5 M stock solution of H3PO4 is needed to prepare 3.8 L of a 1.5 M H3PO4 solution? (1 point) Select one: a. 1.0 L b. 2.3 L c. 5.7 L d. 6.3 L      Log On


   

Question 824951: What volume of a 2.5 M stock solution of H3PO4 is needed to prepare 3.8 L of a 1.5 M H3PO4 solution? (1 point)

Select one:

a. 1.0 L
b. 2.3 L
c. 5.7 L
d. 6.3 L
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
Amount of moles must be the same.

Let v = volume in liters to use of the stock solution.
2.5M%2Av=1.5M%2A3.8L
v=1.5%2A3.8%2F2.5