How many grams of KNO3 are needed to prepare 25 mL of a 2.0 M solution?

What’s the percent by mass of carbon in c10h14n2

Which piece of equipment would me most useful for measuring the volume of some water? a. pan balance b. graduated cylinder c. tweezers d. flask quick

What is the molar mass of the anhydrous compound? answer using four significant figures. 36.02 g/mol 120.15 g/mol 156.12 g/mol