I don't know, so I asked Google and it gives conversion charts like this one so have a look here

https://www.convert-me.com/en/convert/density/kgpl.html?u=kgpl&v=1

They is 8.5 bags.

Well done Steve!

It depends on the size of the chips and hence how densely they are packed. You will find the contact details of the supplier on the bag - best phone and ask them.

There are too many unknowns. The hundred litre bags will contain compressed bark which will make a pile larger than the bag when they are fluffed up. I suppose if these eight and a half bags are loosley shoveled into the bulk bag they may fill it. On the other hand, if the questioner is going to buy 850kg from a supplier this would give a much larger heap.