Asolution contains 4.5 × 10-3m hcl. determine the following for the solution:

a. [h3o+]

b. [oh-]

c. ph

8) a mixture of he, ne and ar has a pressure of 7.85 atm. if the ne has a mole fraction of 0.47 and 8) ar has a mole fraction of 0.23, what is the pressure of he? a) 4.2 atm b) 3.7 atm c) 5.5 atm d) 2.4 atm e) 1.8 atm