H2SO4 + 2NaOH - Na2SO4+ 2H20 In a titration, 5.0 ml of 1.0 M H2SO4 solution is neutralized by 8.0 ml of an NaOH solution of unknown
concentration. The concentration of the NaOH is -
OA 2.0 M
OB 1.0 M
OC 0.63 M
OD 1.3 M

It takes 83 mL of a 0.45 M NaOH solution to neutralize 235 mL of an HCl ... 2). You are titrating an acid into a base to determine the concentration of the base. The endpoint of the neutralization is reached but the stopcock on the buret sticks slightly ... 5). It takes 12.5 mL of a 0.30 M HCl solution to neutralize 285 mL of NaOH ...

Explanation:

answer;

18.5 seconds

explanation;

velocity is distance covered per unit time; it is given by displacement divided by time.

thus; time = displacement/velocity

total time = total displacement/velocity

total distance = 5000 meters south

total time = 5000/4.5

                  = 1111.11 seconds

but; 1 minute = 60 sec

thus; 1111.11 /60

                = 18.51 seconds

thus; the time taken is 18.5 seconds