Question

Choose from the given list of aqueous solutions (A-D).Solution may only be used once. Which solution is the least acidic? Which solution has the highest pH? Which solution is the most basic? Which solution is the least basic? pH = -log[H3O+][H3O+]×[OH-] = 10-14Solution A has [H3O+] = 3.5×10-5 MSolution B has [H3O+] = 3.5×10-4 MSolution C has [OH-] = 1.3×10-10 MSolution D has [OH-] = 6.2×10-11 M

Answer 1

Step-by-step explanation:

To solve this question, we need to calculate the pH for each solution. For this, we will use the following equation:

pH = - log [H+]

Solution A:

[H+] = 3.5x10^-5

pH = - log 3.5x10^-5

pH = 4.5

Solution B:

[H+] = 3.5x10^-4

pH = - log 3.5x10^-4

pH = 3.5

Solution C:

For this solution, we will calculate the pOH using the following equation:

pOH = -log[OH-]

then, we will find the pH using the following equation: pH = 14 - pOH

so:

[OH-] = 1.3x10^-10

pOH = -log 1.3x10^-10

pOH = 9.9

pH = 14 - 9.9

pH = 4.1

Solution D:

[OH-] = 6.2x10^-11

pOH = -log 6.2x10^-11

pOH = 10.2

pH = 14 - 10.2

pH = 3.8

Answer:

Which solution is the least acidic?

Solution A

Which solution has the highest pH?

Solution A

Which solution is the most basic?

Solution A

Which solution is the least basic?

Solution B