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Ch.5 - Introduction to Solutions and Aqueous Solutions

Chapter 5, Problem 81

Find the mass of barium metal (in grams) that must react with O2 to produce enough barium oxide to prepare 1.0 L of a 0.10 M solution of OH-.

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Hi everyone. So we have Australian metal reacting with oxygen gas And strontium oxide is produced or asked how many grams of uranium metal is required to produce enough strontium oxide to make 2.1 l Of a 0.5 molar hydroxide ion solution. We're gonna have strange metal which is as our solid Plus auction gas which is 0.2. Yes, this year's trainee um oxide which is S. R. O. Solid. It's a balance is we're gonna put a tour from Australia and it took us from Australia outside. And then we also have standing outside. We're acting with water. The british training hydroxide and for the concentration of O. H minus It's going to be equal to two house construction Australia hydroxide. And so now we need to determine the moles of straining oxide. We have 2.1 leaders, a strong hydroxide And we have 0.5 Mueller of hydroxide solution. They're gonna have 0.5 malls of strontium hydroxide and one leader We have two moles. Australian hijack side Which also has two moles Australian oxide Because they're in a 1-1 ratio. This is just 1.05 Australian oxide. So now that we have moles Australian oxide, you can't convert to grams Australian oxide. We have 1.05 balls Australian oxide. And for two moles Australian oxide, We have two malls Australia. And in one mall Australian We have 87.62 grams of Australia 92 grams. Thanks for watching my video and I hope it was helpful
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