Give the systematic name from the given formula:K 2 Cr 2 O 7 ∙ 3 H 2 O

Give the systematic name from the given formula k2cr2073h2o. Alright. So if we take a look at the ionic compound, it's made up of potassium. Potassium is in group 1 a, so it has only one charge, plus 1. As a result of this, it does not require a Roman numeral. Remember, Roman numerals are when we have multiple charges for our metal, So it's just potassium. Then cr 207, remember, CR 2072 minus is our dichromate ion. So we have potassium with dichromate. So potassium dichromate would be the name of our ionic compound. Now we have to figure out what's the name of our hydrate. We have 3 water molecules, so that would be tri for for 3, and then water would just be hydrate. So the name of our ionic hydrate here would be potassium dichromate trihydrate.

Table of contents

Skip topic navigation

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 51m
7. Gases3h 49m
8. Thermochemistry2h 35m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 34m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

3. Chemical Reactions

Naming Ionic Hydrates

General Chemistry

3. Chemical Reactions

Naming Ionic Hydrates

Previous problemNext problem

Struggling with General Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Give the systematic name from the given formula:K₂Cr₂O₇ ∙ 3 H₂O

dipotassium dichromate trihydrate

potassium dichromate trihydrate

potassium chromate trihydrate

trihydrate potassium chromate

Previous problemNext problem

Verified step by step guidance

Identify the chemical formula: K2Cr2O7 ∙ 3 H2O. This represents a compound with water molecules attached, known as a hydrate.

Break down the formula: K2Cr2O7 is the anhydrous part, and 3 H2O indicates that there are three water molecules associated with each formula unit of the compound.

Determine the cation and anion: K2Cr2O7 consists of potassium ions (K^+) and the dichromate ion (Cr2O7^2-).

Name the anhydrous compound: The anhydrous part, K2Cr2O7, is named potassium dichromate. The prefix 'di-' in dichromate indicates the presence of two chromium atoms.

Combine the names: Add the term 'trihydrate' to indicate the presence of three water molecules, resulting in the name 'potassium dichromate trihydrate'.