What is the hydronium ion concentration of a solution with a poh of 7.20?

1.56 × 10−6 m
1.79 × 10−6 m
1.58 × 10−7 m
2.78 × 10−7 m

The concentration of hydronium ions in a solution is

Explanation:

We are given:

pOH of the solution = 7.2

To calculate the hydronium ion concentration of the solution, we need to determine the pH of the solution first. And to calculate that we use the equation:

pH is defined as negative logarithm of hydrogen ion concentration. It is basically defined as the power of hydrogen ions in a solution.

Mathematically,

pH of the solution = 6.8

Putting values in above equation, we get:

Hence, the concentration of hydronium ions in a solution is

hey there!

mass = 6.75 g

volume =   9 cm³

therefore:

d = mass / volume

d   = 6.75 / 9

d = 0.7 g/cm³

answer b

answer : (a) volume of the gas = 8.67 ×   l

                (b) second virial coefficient b = -1.21226 l/mole

solution :   given,     t = 300k

                                p = 20atm

                                z = 0.86

                                n = 8.2 mmoles = 8.2 × moles

                                r =   0.082 l atm/k/mol

        find,     (a) volume of gas   and (b) second virial coefficient b at 300k.

formula used :            

                          and            

(a)            

                    = \times 0.082\times 300}{20}[/tex]

                    = 8.67 ×   l

(b)      

                    = (0.00867-1) × 8.659

                    = - 8.5839 l/mole