I wish I could be more helpful, but that's like asking how much money you can make with a business: well you can make nothing or you can make billions.
With a blog, it all depends on the number of people that click on the ad (Adsense pays per click) and how much that ad pays (certain ads will give you more money than others).
The price on the ad depends on the topic - Adsense normally puts ads related to your blog topic or blog topic, so if you write about ceirtain topics will have the potential to make more per ad than other people
And regarding the people that click, you need to look at the number of people on your blog, how interested they might be on the ad, and if they are very loyal readers. Very loyal readers are great for some things, but when it comes to ads, they kind of get used to them and not see them any more.
You'll have to Google how to get the most of it. I know people that make pennies (even less than $10 per month) and people that make well over $10K
Hope that helps!
P.S. I am Indian and English is not my first language, so apologies for any grammar mistakes I might have made ;)
