Respuesta :
The zinc oxide powder that is present in the ointment will be 0.6gm.
What is an ointment?
A smooth, oily substance applied to the skin for medicative or cosmetic applications is ointment.
Ointments, which can be medications, emollients, or cosmetics, can be applied to the eyes, skin, and mucus membranes to treat a variety of conditions.
As in the given ointment, 100gm of solution is having 2 gm of zinc oxide, then 30gm will have 0.6gm of zinc oxide.
Thus, 0.6gm of zinc oxide powder are needed to prepare 30 g of a 2% ointment.
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