FBarrett

Thank you all for your help. I think i managed to get it done. This is my answers. Unknown A = 1.007 y = 0.0061X + 0.9989 1.007 = 0.0061X + 0.9989 1.007 - 0.9989 = 0.0061X X = 1.007 - 0.9989 / 0.0061 = 1.3279 PPM Unknown B = 1.015 y = 0.0061X + 0.9989 1.015 = 0.0061X + 0.9989 1.015 - 0.9989 = 0.0061X X = 1.015 - 0.9989 / 0.0061 = 2.6393 PPM Unknown C = 1.018 y = 0.0061X + 0.9989 1.018 = 0.0061X + 0.9989 1.018 - 0.9989 = 0.0061X X = 1.018 - 0.9989 / 0.0061 = 3.311 PPM Any guidance on where i went wrong would be greatly appreciated. Thanks

Hi, This is my first post and i'm stuck on this question. I cant figure out how to determine the concentration of unknown water samples using known specific gravities. What methods i.e formulas do i need to use. Any help would be appreciated. Thanks. Determination of the salinity of three estuarine water samples.pdf