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Consider the following problem.We start with 22.8 g of a radioisotope. After 4.2 days, we have 5.7 g of the radioisotope left. What is the

Consider the following problem.We start with 22.8 g of a radioisotope. After 4.2 days, we have 5.7 g of the radioisotope left. What is the half-life of the radioisotope?a. Select the applicable formula from the formula sheet below .b. Rearrange the formula for the unknown.c. Substitute the given values into the rearranged formula.d. Evaluate the unknown.

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Formula Sheet Acidic and Basic Solutions H+] = 10-PH [OH ] = 10-POH [H+] [OH ] = 10-14 PH + pOH = 14 Radiation Problems m = m = 1- mo 2 th t n = th = r = 2 t

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