What is the pH of a 0.72 M HBr solution?

(type the answer like this: 0.???

With a zero to the left of the decimal and 3 digits after the decimal)

What is the pOH of a solution that has a pH of 3.98?

• 10.02

• 1.05 x 10^-4

• 9.55 x 10^-11

• 3.98

Label the following as acid or base, or conjugate acid or conjugate base.

HCl + NH₃ --> Cl^- + NH₄⁺

• base

• HCl

• conjugate base

• Cl^-

• conjugate acid

• NH₃

• acid

• NH₄⁺

Label the following as either acid or base or conjugate acid or conjugate base:

HClO + CH₃NH₂ --> ClO^- + CH₃NH₃⁺

• acid

• CH₃NH₃⁺

• base

• ClO^-

• conjugate base

• HClO

• conjugate acid

• CH₃NH₂

What is the name of this compound: HNO₃

• nitric acid

• nitrous acid

• hydronitric acid

• hydronitrous acid

What is the name of this compound: H₂SO₃

• sulfuric acid

• sulfurous acid

• hydrosulfurous acid

• hydrosulfate acid

What is the name of this compound: HBr

• bromic acid

• broumous acid

• hydrobromic acid

• hydrobromous acid

What is the name of this compound: KOH

• potassium hydroxide

• potassium oxygen hydride

• hydroxide potassium

• potassium monohydroxide

What is the name of this compound: Ca(OH)₂

• calcium dihydroxide

• calcium bihydroxide

• calcium hydroxide

• hydroxide dicalcium

What is the [OH-] in a solution that has a [H3O+] of 1.35 x 10^-4

• 1.35 x 10¹⁰

• 13.999865

• 7.41 x 10^-19

• 7.41 x 10^-11