Congratulations on your new litter. Since you did not see all the placenta you really need to watch her close and monitor her temperature. Most likely all the placentas will pass but you really don't know. If she starts running a temperature you will need to get her to the vet.
Since it is a large litter you might have to help supplement the pups a little. I recommend a formula with canned goats milk using half goats milk and half distilled water or boiled water.
Please read the following article:
http://www.showpapillons.com/formula.htm
In paragraph 10 is a recipe for glucose drops you can give to the puppy. I have used these drops a number of times on small puppies and I feel they really do help.
To get the puppies to latch you can put a little karo syrup on the moms nipples and that might help them to latch.
You will need to make sure momma eats three or four big meals a day. She will also need a calcium supplement. Hopefully you already have some on hand.
I pray your momma and babies do well.