Which oxide, CrO 3 or CrO, forms a more acidic aqueous solution?

Yeah. Hey, guys, let's attempt to do the practice question that was left at the bottom of the page. So here I say, which oxide forms aim or acidic? Aqueous solution. So what did we say? We say that these oxides become less basic as their oxidation states increase. Okay, so that's what we're talking about here. So here, if we wanted to figure out their oxidation states. So if we look at this first one, we have C R. 03 we'd say here, chromium, we don't know it's oxidation. Number is it's X oxygen here is minus two. Then we'd say, Here we have X plus three oxygen's. Each one is minus two equals the charge of my molecule, which is zero x minus six equals zero. So x years plus six. So this would be chromium six. Then we'd say what we'd say here, this is X, and then this is minus two. Since the charge overall is neutral than this, X must of course be plus two. So what do we just say? We say oxides become less basic as our oxidation states increase less basic means more acidic. So this first compound has a greater oxidation number chromium plus six. Therefore, it's more sick, So C. R 03 would have been your answer for this question. So remember all that entailed in terms off oxidation numbers and what factors that play in identifying the bonds is being either ionic or co violent and then determining if it creates a basic oxide on acidic oxide or an AMFA Terek oxide. Angela Terek oxides are a little bit trickier to determine. Remember, Apple? Terek means it behaves as an acid or a base here. Since numbers so large plus six, we're gonna say that it's gonna behave mawr as an acid than as a base or have a Terek. Good example of something that could be an esoteric is if we look at titanium for oxide tai 02 that is, an esoteric plus four is mid range in terms of oxidation numbers by mid range, reeling around plus three plus four. But this varies. If you want more specific types of apple Terek oxide, just make sure in lecture as your professors discussing this, they'll point out which transition metals behave mawr, AMFA, Terek Lee than others. But right now, just realize as your oxidation number increase, so does your acidity

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24. Transition Metals and Coordination Compounds

Atomic Radius & Density of Transition Metals

General Chemistry

24. Transition Metals and Coordination Compounds

Atomic Radius & Density of Transition Metals

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Which oxide, CrO₃ or CrO, forms a more acidic aqueous solution?

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Which oxide, CrO3 or CrO, forms a more acidic aqueous solution?

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