Calculations on stock solutions?be sure to include the amount of water added and include all units 9. Calculate how to use the 20% stock solution of sds to make a100 ml of a 0. 1% sds working solution 10. Calculate how to use the 0. 5 m tris stock solutions to make the 350 ml of a 10 mm tris working solution. Calculations on multiple stock solutions?be sure to include the amount of water added and include all units 11. Calculate how to use the 1 m tris and 0. 2 m edta stock solutions to make the 400 ml of a of 10 mm tris and 1 mm edta solution. 12. Calculate how to use a 3 m nacl and 10% np40 stock solutions to make a 500 ml of a 300 mm nacl and a 0. 2% np40 working solution.