The first one (Salat) = صلاة
It ends with a (T) sound when we pronounce it.
This pronunciation is used when the word is in the beginning of a sentence or if the word Salat existed between words.
Salat Alfajr should be done before the sunrise.
.صلاة الفجر يحب أن تنهى قبل شروق الشمس
This pronunciation does not work when you are ending the sentence with the word Salat because in this case the right way is to end it with a (Ha) sound not the (T) sound anymore.
The second one is (Salah)= صلاة
It ends with a (Ha) sound when we pronounce it. IT is used when the word is in the end of a sentence.
Do not forget to take your brother to the prayer or (Salah).
.لا تنس أن تأخذ أخاك للصلاة