Answer to Question #134217 in General Chemistry for Yadira Carranza

Question #134217

9. Determine the molar mass of an element which is made up of 2 isotopes, one of which has 30 protons and 32 neutrons (25% of the element) and the other has 30 protons and 34 neutrons and makes up 75% of the element

Expert's answer

62 x 0.25 + 64 x 0.75 = 63.5

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