I was wondering if you all could help me with my dimensional analysis problems. I am having a major problem with these and can't seem to get them to come out right. I know it's that I'm not setting up the problems in the right way so if anyone could help me I'd appreciate it.

if I wanted to convert 1.25 deciliters into nanoliters how would I accomplish this?

the only way I can think of is to first convert deciliters into liters then jump right into nanoliters. I guess it looks something like this.

1.25 deciliters x 1 liter x 1,000,000 nanoliters

10 deciliters 1 liter

I make sure that my units match up so I can cancel them, but I don't think that the problem is coming out right. As far as I know there are 100,000 milliliters in a liter and 1,000,000 nanoliters in a liter. if that's not correct plz tell me b/c that might be the problem.

my next question is would there be 3 significant figures in the final answer b/c of the 1.25? I believe that you would round off the answer if the 4th digit is 5 or higher.

I am good at the basic ones. I can pretty much figure them out, but the ones that involve more than one conversion I have problems with. could anyone plz give me some helpful hints in solving these problems plz?

thank you all for your time.