1) When I do wudu and I'm washing my right or left arms, for example when I'm washing my right arm, I take the water out of the container from my right hand then put it on my left and then wash my right arm using that water. I dont know it its mustahab to do that. Should I just straight take the water from my left and then wash my right arm or should
I take the water from my right then put it in my left hand and then finally put it over my right

2) Is it better to wash the face once in wudu or twice

by

1) Yes it’s mustahab to pour water in your right hand, then pour it in your left, then wash your right arm with it. This is mustahab, not wajeb.

2) It’s mustahab to wash the face twice