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Environmental Chemistry Assignment | Professional Essay Writers

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February 21st, 2020

1. Serum containing Na* gave a signal of 4.27 mv in an atomic emission analysis. A standard addition method was developed and three samples were prepared with 0.2.00, 5.00 mL of 2.08 M NaCl standard added. The sample containing 5.00 ml of standard was added to 95.0 mL of the original serum.

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This particular serum sample gave a signal of 7.98 mV. Infact, when signal (in mV) was plotted against concentration of standard added, the method showed a sensitivity of 755.76 units. How much Nat was in the original sample? Express the answer in mol/L (20 points). Get Chemistry help Today

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