how do you calculate per serving Zn value for kidney beans compare it with the reported value fine powder beans: 3.3011 g nutrtional value per 100g (3.5 oz): zinc 10%.  1.07 mg y=0.0037x+0.2727 0=0.0037x+0.2727 x=-73.702 = 73.702 Diluted of unknown solution: 73.702 ppb x 400 (dilution factor) = 29,480 ppb 29,480 ug/L x 0.010 = 2948 ug = 2.94 mg in ca 4 g beans

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