1.

Chemical composition, which is TRUE?

A. pH is the negative natural logarithm of [H+]
B. pH 5 to pH 6 involves tenfold increase in [H+]
C. pH remains 7.4 +/- 0.05 in ECF, stabilised by buffer
D. H2O and CO2 H2CO3 H+ and HCO3-, adding H+ shifts the equilibrium to the right, while adding ??? shifts it to the left
E. the Donnan effect does not contribute significantly to the balance of electrolyte between intra and extra vascular compartment
Answer» D. H2O and CO2 H2CO3 H+ and HCO3-, adding H+ shifts the equilibrium to the right, while adding ??? shifts it to the left


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