1. Who was the first chemist to realize clearly that the bitter taste of seawater was due to the presence of MgSO4 and MgCl2? (A) Antoine Lavoisier, (B) Michael Pilson, (C) John Riley, (D) Wallace Broecker, (E) John

21. A 28 y/o young male visited your outpatient clinic with an elevated blood pressure of 148/100 mmHg. He denies taking any medications, but has a family history of hypertension. His laboratory values were: [Na] 140 mEq/L, [K] 3.1 mEq/L, [Cl] 98 mEq/L, BUN 25 mg/dL, Creatinine 0.9 mg/dL, Glucose: 85 mg/dL. The arterial blood gas (ABG) test reveals: Arterial pH: 7.48, PCO2: 46 mm Hg, HCO3-: 34 mEq/L. What is the most appropriate characterization of his acid-base disorder? (A) Metabolic alkalosis (B) Metabolic alkalosis and respiratory acidosis (C) Respiratory alkalosis and metabolic acidosis (D) Metabolic alkalosis and respiratory alkalosis (E) Respiratory alkalosis

1. Who was the first chemist to realize clearly that the bitter taste of seawater was due to the presence of MgSO₄ and MgCl₂?
(A) Antoine Lavoisier,
(B) Michael Pilson,
(C) John Riley,
(D) Wallace Broecker,
(E) John

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