Time Remaining: 01:25:03 1. (TCO 7) According to the Bronsted-Lowry definition,

Question

Time Remaining: 01:25:03 1. (TCO 7) According to the Bronsted-Lowry definition, which chemical in the following reaction is the acid? H3PO4+ H20> H30 H2PO4 (Points : 3) O H3PO4 O H2PO4 None of the above 2. (TCO 7) According to the Bronsted-Lowry definition, which chemical in the following reaction is the base? MgPO4 + H29 H3O+ + H2PO4" (Points : 3) O H3PO4 H20 O None of the above 3. (TCO 7) Hydrocyanic acid is a weak acid, because (Points: 3) O it is only slightiy soluble in water O it dissociates only slightly in water. O it is a dilute solution O it cannot hold onto its hydroxide lons O it is completely ionized in aqueous solution. ) causes a patient to exhale large amounts of COa, the blood pH rises in

Explanation / Answer

Bronsted Acid-Base Theory: According to this theory, an acid is a "proton donor" and a base is a "proton acceptor."

1. Acid is H3PO4 (proton donor)

2. Acid is H2O   (proton aceptor)

3. it is dissociates slightly in water.

Hydrogen cyanide is weakly acidic with a pKa of 9.2. It partially ionizes in water solution to give the cyanide anion, CN. A solution of hydrogen cyanide in water, represented as HCN, is called hydrocyanic acid. The salts of the cyanide anion are known as cyanides. Weak acids have measurable ionization constants in aqueous solution, because they do not dissociate completely.

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