How many baby poop is normal in 10 month old?

Depends. Depends on diet...Typically 1-2 a day is "normal". It can be more if the diet has a lot of fruit juices or fruits. If a 10 month old has more than 4-5 a day look at diet first. And what is quality f poop? Is it formed? Soft? Runny? If you have concerns, you will benefit form a visit with your pediatrician.