What mass (in grams) of sodium acetate (CH3COONa) must be added to 100.00 mL of a 0.100 M solution of acetic acid in order to prepare a buffer solution with a pH of 4.50? The Ka of acetic acid is 1.8 × 10−5.

Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.

What volume would 2.25 moles of ne has occupy at stp?

The diagram shows the relationship between scientific disciplines.the names of some scientific disciplines have been removed from the boxes. which scientific discipline belongs in the blue box? a.physics b.biology c.chemistry d.metallurgy