Hello! I understand this may be a very simple question in comparison to many on here, but alas I am still having trouble with it. I am trying to make ensure I have the correct concentration of Oligo-dt primers for a reaction. I am needing 10μM of Oligo-dt but the only information I have is 0.4μg/μL. Am I correct in that this isn't enough information to determine molarity? The product is through Qiagen and I have looked through their handbook and all the ordering information, but have not found anything on the morality or on Oligo-dt's molecular weight. Maybe I am just not understanding? Sorry if this is unbearably simple, in my defense I am still a student.