Jai is a first year biology student at Flinders University. Their demonstrator group looked at the effect of SDS on membrane permeability in Beta vulgaris. Jai wants to check their calculations for the preparation of the solutions. They prepared 1100 mL of all solutions. For one of the solutions, they added 440 mL of a 10% stock solution of SDS. What was the final concentration of this solution?

Select one:

a.

5%

b.

2.5%

c.

4%

d.

3.5%

e.

1%