Frequently Asked Questions about HI (Hydroiodic Acid)

Is HI an Acid or Base?

HI, hydroiodic acid, like its name suggests, is an acid. It releases H+ in water. According to Arrhenius theory, a compound that can release hydrogen-ion (H+) in water is considered an acid. Since hydroiodic acid does so too, it is labeled as an acid as well.

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Is HI (Hydroiodic Acid) a Strong or Weak Acid?

HI (hydroiodic acid) is a strong acid with a pH of 3.01. When dissolved in water, it releases H+.  That makes it an acid. And definitions state that any acid that completely dissociates or ionizes in water is a strong acid. As Hydroiodic acid ionizes completely in aqueous solution, it is a strong acid too.

What is HI commonly used for?

HI (hydroiodic acid) is an ingredient in disinfectants. Since it is highly acidic, it helps to kill germs and viruses more effectively. It is also used to clean medical tools and many other things. In addition many laboratories use it as a reducing agent in different chemical reactions.

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Average Chemistry Lesson Durations & Costs List

Chemistry Lesson Lengths Average Costs
30 minutes $15
45 minutes $22.50
60 minutes $30

How to Find and Choose a Chemistry Tutor

Instructor Reputation

In addition to finding a teacher with good ratings, consider several factors when choosing your chemistry teachers, such as the location, teacher punctuality, diversity of teaching styles, and personality fit. The cost of chemistry lessons often aligns with the teacher’s expertise.

Experience and Specialization of the Teacher

Chemistry teachers sometimes prefer one topic over another, so take advantage of the tutor interview process to understand if they are a good fit. You will want to ensure to find the right fit and price ranges. Just because a teacher is good at chemistry, this is no indication of their ability to teach you or your child.

Virtual VS On-Site Chemistry Lessons

Today, most chemistry lessons occur over online video. However, depending on the lesson, including organic chemistry, inorganic chemistry, chemical reactions, quantum mechanics, inorganic compounds, atomic structure, organic reactions, etc., many teachers are willing to provide safe sessions in person if they are located nearby.

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