HELP! Vitamin B12, cyanocobalamin, is essential for human nutrition. It is

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KakiKing

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concentrated in animal tissue but..? not in higher plants. Although nutritional requirements for the vitamin are quite low, people who abstain completely from animal products may develop a deficiency anemia. Cyanocobalamin is the form used in vitamin supplements. It contains 4.34% cobalt by mass. Calculate the molar mass of cyanocobalamin, assuming that there is one atom of cobalt in every molecule of cyanocobalamin.

_________ g/mol
 
58.933amu for 1 atom of cobalt (p.table) w/e amu, the same is for molar mass in g/mol, so 58.933g/mol of cobalt.
if 4.34% is 58.933g then simply find the rest 95.66% in grams.

58.933/4.34 = 13.58g/1%
or 1,358g/100% 1mol of cyanocobalamin is 1358g/mol
 
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