Well im encountering some probelms with a question im doing.
Q:The hemoglobin in red blood cells carries oxygen to body tissues. What amount of hemoglobin is in 25.0 mL of a hemoglobin soloution with a concentration of 1.90 x 10-3mol/L
n=c x v
=1.90x10^3 mol x 25.0
now my question how the heck do i put this in my calculator im thinking im doing something wrong with the 3 thing. this is because ive been getting the right answer whenever it isnt giving me the 3 thing. The correct answer in my book is 4.75 x 10-5 mol but i get nothing close to that. could someone please explain if im doing something wrong n my equation and how i input it into a calculator. Thanks