How many moles are in 2.71 x 10 25 molecules of carbon dioxide (CO2)? A. 1.63 x 10 49 mol
B. 4.50 x 10 * mol
C. 4.50 mol
D. 16.3 mol

Compare the valence electron configuration of the nobles gas elements seen here. what statement is correct?

Calculate: select the worksheet tab. this tab you calculate the analyte concentration.  fill in the first set of boxes ("moles h2so4" and "moles naoh") based on the coefficients in the balanced equation. (if there is no coefficient, the value is 1.)  record the appropriate volumes in the "ml naoh" and "ml h2so4" boxes.  record the concentration of the titrant in the m naoh box. click calculate. what is the concentration listed

Anurse used a 0.02-mg/l solution of disinfection to clean a patients wound. what is the concentration of the solution expressed as a percentage?