Complete the following acid base reaction and then answer the questions below. H
ID: 1004011 • Letter: C
Question
Complete the following acid base reaction and then answer the questions below. H_3 PO_4 + H_2 O Which of the above reactions is amphiprotic? Which of the above reactants becomes a base? True or False. A proton is being donated from H_3 PO_4 to water. Write the formulas of one conjugate acid base pair produced in the above reaction. If CIO_3 is a weak base, then which of the following is true about its conjugate acid? Requires a high activation energy to donate protons Readily accepts hydrogen ions Has a pH value between 6 and 7 Has a high concentration of hydronium ions In solution Write the following formulas: The conjugate base of H_2 O The conjugate base of CH_3 COOH the conjugate acid of CH_3 CH_2 NH_2Explanation / Answer
6. H3PO4 + H2O H3O+ + H2PO4-
Acid Base Conjugate Conjugate
Acid Base
a)Amphiprotic- A molecule that can either donate or accept a proton. Hence in this reaction, H2O is amphitropic.
b)Since H2O accepts a proton, it becomes the base.
c)A proton is being donated from H3PO4 to water. True
H3PO4 --- H+ H2O + H+
-- H+
d) H3PO4 H2PO4-
acid + H+ Conjugate base
+ H+
H2O H3O+
Base -- H+ Conjugate acid
7. ClO3- is a weak base. Its conjugate acid is HClO3. It will have a pH value between 6 and 7. It becomes almost neutral.
b) is the answer.
8. a) The conjugate base of H2O is OH-
Acid becomes conjugate base after donating proton, H2O donates H+ and becomes OH- the conjugate base of it.
b) The conjugate base of CH3COOH is CH3COO-
Acid becomes conjugate base after donating proton, CH3COOH donates H+ and becomes CH3COO-
c)The conjugate acid of CH3CH2NH2 is CH3CH2NH3+
Base becomes conjugate acid after accepting proton, CH3CH2NH2 accepts H+ and becomes CH3CH2NH3+