Saturday, December 12, 2009

A cream in the pharmacy is labeled 5 g hydrocortisone per 100 g of aquaphor ointment. What is the percentage ?

of the cream? This is the rest of the question from above.|||Hi,





For this question, notice that we have to find the percentage which is a relationship between the PART and the WHOLE.





Notice that the whole is always bigger than the part, since the part represents a small fraction.





Therefore, 5 grams = the part and 100 grams = the whole and can be expressed as:





[ part / whole ] x 100 = [ 5 / 100 ] x 100





Which now equals:





FINAL ANSWER: 5%





I hope that helps you out! Please let me know if you have any other questions!|||Everyone is right, but please note that the answer is 5 weight percent. In this case, this is likely the desired answer, but it could also be expressed as volume percent or mole percent. To provide those results would require the density (volume percent) or average molecular weight (mole percent) of each.





Always include the units in your calculations and answers. If the units don%26#039;t work out properly, you did the calculation wrong. Its an easy check on your answer.|||Are you serious? %26quot;Percentage%26quot; means %26quot;parts per 100%26quot;, and your freakin%26#039; question gives you the answer!!|||5g/100g


= 1/20


= 0.05


= 5%|||5/100=5%|||5/100 = .05, or 5%

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