Black powder is made of 75% saltpeter (potassium nitrate; KNO3), 15% charcoal (carbon), and 10% sulfur. What is the mass of KNO3, Carbon, and Sulfur in a 150 gram sample of black powder?

What is the relationship of air masses and the temperature of oceans?

Achemistry student weighs out 0.306 g of citric acid (h3c6h5o7), a triprotic acid, into a 250 ml volumetric flask and dilutes to the mark with distilled water. he plans to titrate the acid with 0.1000 m naoh solution. calculate the volume of naoh solution the student will need to add to reach the final equivalence point. be sure your answer has the correct number of significant digits.

Which is true of a liquid? it has a definite volume but not a definite mass.it has a definite mass but not a definite volume.it has a definite volume but not a definite shape.it has a definite shape but not a definite volume.