Can someone explain me why the molar mass become 90.12 g/mol and when i calculated it's 90 g/mol?

List the two type of transporst that the cell in orde to transport molecules acroos the membrane

Amount of liquid measured in l or lm

2points what is the job of a scientist? a. to answer ethical questions. b. to write laws based on his or her knowledge. c. to ask and answer scientific questions. d. to ignore facts that do not support his or her theory.