How many moles are in 30.68 grams of potassium nitrate? Molar mass of potassium nitrate is 101.11 g/mol. A. 1.36 moles
B. 1.02 x 10^-22 moles
C. 3,102.05 moles
D. 0.303 moles

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

Compare and contrast the bohr model and the electron cloud models of the atom.

Which of the following is true about a carbonated soft drink? . the carbon dioxide is the solvent, and water is the solute.. the water is the solution, and carbon dioxide is the solvent.. the carbon dioxide is the solution, and the water is the solvent.. the water is the solvent, and the carbon dioxide is the solute.. .