What is the total number of moles of solute contained in 0.5 liter of 3.0 m

Based on science 4) 1) 0.25M

2) 0.66M

3) 1.5M

4) 4.0M - -> Therefore, this is the most concentrated

5) 30g NaOH (1 mol NaOH / 40gNaOH) = 0.75 mol NaOH / 0.500L = 1.5M NaOH (3)

6) 1) 1.0 mol / L (1 L) = 1 mol H2SO4

2) 1 mol / L (2 L) = 2 mol H2SO4

3) 0.50 mol / L (1.0L) = 0.50 mol H2SO4 - ->

7) 0.200 mol / L (1 L) (74.6g / mol) = 14.92g (2)

8) 0.25 mol / 0.250 L = 1 mol / L = 1M (1)

This is the answer : 1m