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I have a sample of seawater from the open ocean with salinity S = 35.00 at 20°C. I need help finding the concentration of magnesium ion in a seawater sample at 5°C in units of mmol/kg and also in mmol/L. Using this table, we can see that at 20 degrees Celsius, the concentration is 52.82 mmol/kg and 54.13 mM(mmol/L). The density at 5°C 1027.677 kg/m^3 and 1024.763 kg/m^3 at 20°C. The density anomaly would be 24.7896 at 20°C.

I have a sample of seawater from the open ocean with salinity S = 35.00 at 20°C. I need help finding the concentration of magnesium ion in a seawater sample at 5°C in units of mmol/kg and also in mmol/L. Using this table, we can see that at 20 degrees Celsius, the concentration is 52.82 mmol/kg and 54.13 mM(mmol/L). The density at 5°C 1027.677 kg/m^3 and 1024.763 kg/m^3 at 20°C. The density anomaly would be 24.7896 at 20°C.

Introduction to Chemical Engineering Thermodynamics
Introduction to Chemical Engineering Thermodynamics
8th Edition
ISBN:9781259696527
Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart
Chapter1: Introduction
Section: Chapter Questions
Problem 1.1P
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I have a sample of seawater from the open ocean with salinity S = 35.00 at 20°C. I need help finding the concentration of magnesium ion in a seawater sample at 5°C in units of mmol/kg and also in mmol/L.

Using this table, we can see that at 20 degrees Celsius, the concentration is 52.82 mmol/kg and 54.13 mM(mmol/L). The density at 5°C 1027.677 kg/m^3 and 1024.763 kg/m^3 at 20°C. The density anomaly would be 24.7896 at 20°C.

Thank you!

Table 4.1 Concentrations of the major constituents in surface seawater At salinity (PSS 1978): S = 35.00%, t = 20 °C mg kg¯ s-1 g kg mmol kg mM Na+ 308.1 10.782 469.00 480.61 K+ 11.40 0.399 10.21 10.46 Mg²+ 36.68 1.284 52.82 54.13 Са2+ Sr2+ CI so? 11.76 0.4115 10.27 10.52 0.223 0.0078 0.090 0.092 552.93 19.353 545.87 559.39 77.49 2.712 28.235 28.935 НСО, 3.217 0.1126 1.845 1.891 0.317 0.0111 0.184 0.189 CO2 0.017 0.0006 0.013 0.0133 Br 1.923 0.0673 0.842 0.863 0.0207 B(OH)3 B(OH), 0.591 0.334 0.342 0.186 0.0065 0.082 0.0839 F 0.037 0.00130 0.068 0.070 Totals 1004.87 35.170 1119.87 1147.60 Alkalinity 2.300 2.37 Everything else ~0.03 Water ~964.80 ~53,554 ~54,880
Transcribed Image Text:Table 4.1 Concentrations of the major constituents in surface seawater At salinity (PSS 1978): S = 35.00%, t = 20 °C mg kg¯ s-1 g kg mmol kg mM Na+ 308.1 10.782 469.00 480.61 K+ 11.40 0.399 10.21 10.46 Mg²+ 36.68 1.284 52.82 54.13 Са2+ Sr2+ CI so? 11.76 0.4115 10.27 10.52 0.223 0.0078 0.090 0.092 552.93 19.353 545.87 559.39 77.49 2.712 28.235 28.935 НСО, 3.217 0.1126 1.845 1.891 0.317 0.0111 0.184 0.189 CO2 0.017 0.0006 0.013 0.0133 Br 1.923 0.0673 0.842 0.863 0.0207 B(OH)3 B(OH), 0.591 0.334 0.342 0.186 0.0065 0.082 0.0839 F 0.037 0.00130 0.068 0.070 Totals 1004.87 35.170 1119.87 1147.60 Alkalinity 2.300 2.37 Everything else ~0.03 Water ~964.80 ~53,554 ~54,880
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