Question

Given the following stocks or chemicals in your stock room:

1) 1.5L of 100% glycerol (it is very thick and syrupy-like, so pour it slowly)

2) 100 mL of 1 M hydrogen peroxide (H₂O₂) (MW= 34.0147 g/mol)

3) 4 L of 95% EtOH (ethanol)

Make 50ml of hand sanitizer (80% EtOH; 8.82 M H₂O₂; 1.45% glycerol).

Answer 1

& Total volume Some > 10mL a) civi = C₂ V2 95%. XV = Soy. X SomL V - 42.10 mL 6) Glycerol ciu, cu looy.xu, = 1.454 x 50 mL V = 1.45 4. x 50ml loo 0.725 ML So, to make so ml of Hand Sanitizer we need 2 42 10 mL of 954. EtOH + 0.725 mL of looy a lycerolt 7.175 me of 8.82 M H₂O2- Since stock conc. of H₂O₂ is IM so it can not be made 8.82M as it is higher concentration by dillution he can decrease the concentration but can not concentrate the solution to to make Hand Sanitizer we need 7.175 me g 8.80M H2O2.