Depends what "dry ounce " media is.
howmany dry tsps equals 3 ounces
21 dry teaspoons is how many ounces?
That is approximately 95 teaspoons.
There are 114 and 1/3 dry teaspoons in sixteen ounces
6
In liquid measure, 1 oz. equals 6 teaspoons. At that rate, 1 1/2 ounces equals 9 teaspoons. In dry measure, there are about 5 grams per 1 teaspoon of flour. (Don't expect the same conversion for, say, long grain rice, but it will be in the neighborhood.) At that rate, there will be right at about 8 1/2 teaspoons for 1 1/2 ounces of dry (flour) measure.
32 teaspoons or 2/3 cup instant milk will reconstitute to 16 ounces of milk.
2 ounces of water is about 12 teaspoons
four
The density of the powder is needed because V=M/d.
About 0.4 ounces.
That is approximately 380 teaspoons.