In water, every sulfuric acid molecule transfers H+ to water and becomes an HSO4 - ion. Some HSO4 - ions give off another H+ to form SO4 -2 ions. Which statement is true?
H2SO4→H++HSO−4⇌H++SO2−4
1. H2SO4 is a strong acid and HSO4 - is a weak acid.
2. H2SO4 and HSO4 - are strong acids.
3. Both H2SO4 and HSO4 - are weak acids.
4. H2SO4 is an acid; HSO4 - is not an acid.
In water, every sulfuric acid molecule transfers H+ to water and becomes an HSO4 - ion. Some HSO4 - ions give off another H+ to form SO4 -2?
2016-05-31 1:00 am
回答 (1)
2016-05-31 1:08 am
Refer to the description in the question.
"Every" H₂SO₄ molecule transfers H⁺ to water. Hence, H₂SO₄ is a strong acid.
"Some" HSO₄⁻ ions give off H⁺ to water. Hence, HSO₄⁻ is a weak acid.
...... The answer is : 1. H₂SO₄ is a strong acid and HSO₄⁻ is a weak acid.
"Every" H₂SO₄ molecule transfers H⁺ to water. Hence, H₂SO₄ is a strong acid.
"Some" HSO₄⁻ ions give off H⁺ to water. Hence, HSO₄⁻ is a weak acid.
...... The answer is : 1. H₂SO₄ is a strong acid and HSO₄⁻ is a weak acid.
收錄日期: 2021-04-18 14:58:06
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20160530170055AAeLeU8