How many teaspoons of baking powder is in 8 oz?

There are approximately 6 teaspoons of baking powder in 8 oz. Baking powder is lighter than water, so 1 teaspoon of baking powder weighs about 0.18 oz. Therefore, 8 oz divided by 0.18 oz per teaspoon equals approximately 6 teaspoons. It's important to note that this is an approximation as the density of baking powder can vary slightly.