What's the acid ionization constant for an acid with a pH of 2.11 and an equilibrium concentration of 0.30 M? A. 3.32×10–4 B. 4.87×10–8 C. 1.99×10–6 D. 2.01×10–4

by cartels in other countries, shipped by air, mail, or land. i cant really see your answer choices : /

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.

the answer is 75.0%.