Thanks!

P.S. I was going to ask the same about (Arm and Hammer) baking soda, but I found at gourmetsleuth.com that 4.6 grams = 1 tsp, so assuming that's correct...

4.6 g/tsp * 48 tsp/C = 220.8 g/C

220.8 g/C / 28.35 g/oz =

7.79 oz/C for baking soda

Sanity check: 1.5 C removed a fraction around a sixth of a 5-lb bucket, which is about 8.93 oz/C. Kind of close.