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Dominik [7]
2 years ago
3

Solid iron(iii) hydroxide decomposes to produce iron(iii) oxide and water vapor, according to the following reaction: 2fe(oh)3 →

fe2o3 3h2o. if 0.75 l of water vapor is produced at stp,
a. how many grams of iron(iii) hydroxide were used?
Chemistry
1 answer:
garri49 [273]2 years ago
3 0
The balanced chemical reaction is:

2Fe(OH)3 = Fe2O3 + 3H2O

We are given the amount of water vapor to be produced from the reaction. This will be the starting point of our calculations.

0.75 L H2O ( 1 mol / 22.4 L ) ( 2 mol Fe(OH)3 / 3 mol H2O ) ( 106.87 g / 1 mol ) = 2.39 g <span>Fe(OH)3</span>
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Answer:

\%m=0.15\%

Explanation:

Hello,

In this case, we are asked to compute the by mass percent representing the toxicity of ethylene glycol in the body mass. In such a way, since the by mass percent is computed with the shown below formula:

\%m=\frac{m_{ethylene \ glycol}}{m_{ethylene \ glycol}+m_{body\ mass}}*100\%

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\%m=\frac{1.5g}{1.5g+1000g}*100\%\\ \\\%m=0.15\%

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What alkene reacts the fastest with HBr?
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<span>So to solve your problem, protonate all your Alkenes following Markovnikov's rule, and then compare the relative stability of your resulting carbocations. Tertiary is more stable than secondary, so an Alkene that produces a tertiary carbocation reacts faster than an Alkene that produces a secondary carbocation.


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Answer:

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