Question

A student takes a measured volume of 3.00 M HCl to prepare a 50.0 mL sample of 1.80 M HCl. What volume of 3.00 M HCl did the student use to make the sample?
A. 3.70 mL
B. 16.7 mL
C. 30.0 mL
D. 83.3 mL

Answer 1

know how to calculate molarity?

Answer 2

\(\color{#0cbb34}{\text{Originally Posted by}}\) @lilbrad246
its c
\(\color{#0cbb34}{\text{End of Quote}}\)
No direct answers allowed here. Lead the user to the answer, just like Qwerty did.

Answer 3

M1V1 = M2V2

you are given molarity 1 and volume 1 "50.0 mL sample of 1.80 M HCl"
you are also given a second molarity and asked to find the corresponding volume (M2 = 3.00M) simply plug in and solve for V2