Asked by SHAKAYLA

How many grams of water must be added to 2 grams of a 65% iodine solution in order to produce a 42% iodine solution? Round your answer to the nearest tenth
Answered by Ms. Sue
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Answered by bobpursley
You want to add M grams of water to 2 grams of .65 solution?

amount of iodine in final= amount of iodine in initial

.42(M+2)=.65(2)
solve for M.
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