Question

an order is written for 1000ml of a 4%solution. i have a 12% asolution. how much stock solution and how much diluent are needed to compound this order.
my answer is 333 ml stock,667ml diluent
i used ratio proportion
4x1000=4000
4000/12=333ml
1000-333=667ml diluent.
my answer is 333ml stock,667 ml diluent
is that correct?

Answer 1

Yes, your answer is correct. You used the correct formula for dilution and performed the calculation correctly. Good job!