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Please help! I have a picture of what the problem is but am not sure how to solve what it’s asking

Please help I have a picture of what the problem is but am not sure how to solve what its asking class=

Respuesta :

Answer:

62.21 gm

Explanation:

From periodic table   K = 39    I = 126.9  

    mole weight =   39 + 126.9 = 165.9

.750 Molar  =     .75 * 165.9 = 124.425  gm   per LITER

        you only need 1/2 of a liter so ===>   1/2 * 124.425 = 62.21 gm

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