She can check the status of the stimulus payment here https://www.irs.gov/coronavirus/get-my-payment 
You may need to help her fill out some of that information in the portal.  

i claimed my7 year old daughter on 2019 tax but i didn't receive the 500 dollars stimulus check . ive received only 1200 . why i haven't received the extra 500 usd? 

I would recommend contacting the IRS if you feel the amount received is incorrect.  Please be aware that wait times may be higher than usual when trying to reach out to them.

This did not answer my question.

Essentially my question is this: since my daughter will not receive a stimulus check due to her being claimed as a dependent on my 2019 taxes when she was a college student, will she receive a tax credit of $1200 when she files her 2020 taxes because for ALL of 2020 she was employed, living on her own, and under the salary limits?

Can you tell me where you got this information that you can receive a credit on your 2020 tax return? I have tried looking this up and cannot find anything on this subject.