Pulmonary arterial hypertension is a rare but severe disease with an estimated five-year survival rate of only 57% after diagnosis, according to the Registry to Evaluate Early And Long-term PAH disease management (REVEAL), which registers data from patients in the United States.
Concentration of elements in the ocean relative to the total concentration in the bulk silicate Earth (BSE). Of all the elements, only Cl and Br have a significant fraction in the ocean (see inset), indicating the extreme hydrophilic character for the heavier halogens.
Next. The isotope chlorine-35 has a mass of 34.96885 atomic mass units, and the isotope chlorine-37 has a mass of 36.96590 atomic mass units. Given the information that 75.7771% of all chlorine atoms found in nature are chlorine-35 and 24.229% are chlorine-37, calculate the atomic mass of chlorine.