Compare the absorbances you obtained for the spf

Reference no: EM13145947

Compare the absorbances you obtained for the SPF 8 and SPF 15 preparations. If both preparations contain the same ingredients, how much must the concentration of UV-absorbing materials have been increased to convert a SPF 8 preparation into a SPF 15 preparation?

Reference no: EM13145947

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Compare the absorbances you obtained for the spf : Compare the absorbances you obtained for the SPF 8 and SPF 15 preparations. If both preparations contain the same ingredients, how much must the concentration of UV-absorbing materials

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