Ms. Gallagher wants to do a nice BBQ with some hickory wood. She knows that hickory wood has a density of 0.83 g/cm3. When she placed a piece of wood into the water, exactly half the block was above water and half was below. Is this piece of wood hickory or something else? Explain your

Abeaker with 2.00×102 ml of an acetic acid buffer with a ph of 5.000 is sitting on a benchtop. the total molarity of acid and conjugate base in this buffer is 0.100 m. a student adds 4.70 ml of a 0.360 m hcl solution to the beaker. how much will the ph change? the pka of acetic acid is 4.740.