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If a Kg of an ointment contains 350 gms of active ingredient, what is the percentage strength of the ointment? 25%. 35%. 50%. 70%.
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If a Kg of an ointment contains 350 gms of active ingredient, what is the percentage strength of the ointment? 25%. 35%. 50%. 70%.

User AndrzejO
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m₀ =1 kg = 1000 g
m* = 350 g

w=(m*/m₀)·100%

w=(350/1000)·100% = 35%
User Michael Hausenblas
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