Assume that you have 1, 2, 5, and 10 ml pipets and a 25 ml volumetric flask only. describe in detail how you would prepare a solution with a concentration near 0.100 m from a 0.650 m stock solution using the glassware listed above. calculate the final concentration of the diluted solution (it won't be exactly 0.100 m). it should be within 10% of 0.100 m. ( see the lab skills for the accuracy on volumetric pipets and flasks.)

Which statement is true about hcl? (5 points) select one: a. it is a salt because it increases the concentration of metallic ions. b. it is a salt because it is formed by the reaction of an acid and a base. c. it is an acid because it increases the concentration of hydroxyl ions. d. it is an acid because it increases the concentration of hydronium ions.

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.

What is the vapor pressure of a solution with a benzene to octane?