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aleksandrvk [35]
3 years ago
6

exothermic reaction in which the reaction releases energy as heat. 4. How would the reaction would change if you added 2 g of st

eel wool to the acetate and reduced the iron acetate solution down to 50 mL (evaporated off 100 mL).
Chemistry
1 answer:
Margaret [11]3 years ago
6 0

Answer:

Explanation:

We know that the composition of Steel includes Carbon and Iron. So, if 2g of steel wool was added to the iron acetate, then the iron acetate is now being reduced. What will happen is that the solution will be triggered as it becomes denser and get highly concentrated. Hence, an increase in concentration leads to a decrease in reaction rates. Thus, a slow reaction will take place, and the reaction rate will decrease.

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<u>Answer:</u>

<u>For a:</u> The edge length of the unit cell is 314 pm

<u>For b:</u> The radius of the molybdenum atom is 135.9 pm

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  • <u>For a:</u>

To calculate the edge length for given density of metal, we use the equation:

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N_{A} = Avogadro's number = 6.022\times 10^{23}

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10.28=\frac{2\times 95.94}{6.022\times 10^{23}\times (a)^3}\\\\a^3=\frac{2\times 95.94}{6.022\times 10^{23}\times 10.28}=3.099\times 10^{-23}\\\\a=\sqrt[3]{3.099\times 10^{-23}}=3.14\times 10^{-8}cm=314pm

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  • <u>For b:</u>

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R=\frac{\sqrt{3}\times 314}{4}=135.9pm

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