![Callmetay24](/avatars/49422.jpg)
Callmetay24
13.11.2019 •
Chemistry
What is the percent composition of chromium in crcl3?
Solved
Show answers
More tips
- S Style and Beauty How to braid friendship bracelets?...
- F Food and Cooking Delight for Gourmets: How to Prepare Liver Pate...
- C Computers and Internet How to Learn to Type Fast?...
- H Health and Medicine Angina: Causes, Symptoms, and Treatment...
- D Dating, Love, Relationships How to Overcome Jealousy: Tips and Tricks...
- H Health and Medicine 10 Ways to Cleanse Your Colon and Improve Your Health...
- W Work and Career How to Start Your Own Business: Tips and Recommendations...
- F Food and Cooking How to Make Delicious Cabbage Pies: The Best Recipes!...
- F Food and Cooking Discover Delicious Recipes You Can Make with Ground Meat...
- S Sport How to Do Push-ups Correctly?...
Answers on questions: Chemistry
- P Physics A scientist claims that a certain type fabric is better able to repel water than another....
- B Biology How does convection relate to volcanoes? The density of the melted rock, now magma, is reduced and it starts to move toward the surface of Earth. O Convection causes subduction....
- B Business What is the food service term for the amount of money remaining from a sale after subtracting the sold itemâ s cost from its selling price? 1.Check 2 Food cost percentage 3 Contribution...
- C Chemistry . Why do you think the milk of magnesia takes longer to stabilize the pH during the titration than Alka-Seltzer or Tums?...
Ответ:
The oxidation state of Chromium chloride (III) is +3
How can we find the answer?
First of all write down what you know about the molecule:
1: The molecule hasn't got an electric charge (is not an ione), this means that either positive and negative charges of its atoms are balanced (we have the same number of positve and negative charges)
2: Since it's a salt, where the metal is chromium and the non metal is the alogen Chlorine, we know that the negative charge belogns to the non metal element because of its elettronegativity, therefore the positive charge belongs to the metale element (chromium).
3: when chlorin forms binary salts its oxidation state is always -1 (you can find out this info in a periodic table)
In CrCl3 we have 3 chlorine atoms where each of them carrys 1 negative charge, so the total amount of negative charges is -3
Since the charges are balanced, the question is: Which is the positive charge that Chromium must carry in order to balance 3 negative charges?
The answer comes out to +3
Ответ: