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.

What diagram shows the ionic compound of magnesium oxide

*will mark you brainliest + 15 points ** why does the equilibrium of a system shift when the pressure is increased? a. to maximize the stress on the system b. to stop restoring equilibrium to the system c. to increase the total moles of gas in the system d. to decrease the total moles of gas in the system

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?