You have 0. 500 l of an 0. 250 m acetate buffer solution (i. E. [hc₂h₃o₂] + [c₂h₃o₂⁻] = 0. 250 m) at ph 3. 50. How many ml of 1. 000 m naoh must you add in order to change the ph to 5. 25? acetic acid has a pka of 4. 74

Layer r contains a well-known index fossil that is 100 million years old. based on this information and the principle of superposition, a. layers t and m are older than 100 million years, and layers x and g are younger than 100 million years. b. layers t, m, x, and g are all older than 100 million years. c. layers t and m are younger than 100 million years, and layers x and g are older than 100 million years.