Suppose you are working with a NaOH stock solution but you need a solution with a lower concentration for your experiment. Calculate the volume of the 1.475 M stock NaOH solution needed to prepare 250.0 mL of 0.1374 M dilute NaOH solution.

Explanation:

In this case, we have a dilution problem. We have to remember that in the dilution procedure we go from a solution with higher concentration to a solution with lesser concentration. Therefore we have to start with the dilution equation:

Now we can identify the variables:

If we plug all the values into the equation:

And we solve for :

I hope it helps!

away from the curb

explanation:

the wheels would then hit the curb if it started to rolling, decreasing the chance of an accident.

6.4 cm (max) - 25 cm (min)