Question

What volume of 1.5M NaOH is needed to provide 0.75 mol of NaOH?

(a) 500L 
(b) 5.0 L 
(c) 500 mL 
(d) 0.75 L
Can someone explain me how to make it step by step?

Answer 1

1.5M NaOH so we've 1.5 moles of NaOH in 1L of solution

1L = 1000 ml

1.5 moles of NaOH ------------in------------- 1000 ml
0.75 moles of NaOH ----------in---------------x ml
x = 500 ml

answer: C