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3 years ago

Please help Edgen. chemistry Lab: Reaction Rate Assignment: Lab Report

Chemistry

1 answer:

Arte-miy333 [17]3 years ago

5 0

Answer:

here its probably late but this is my whole lab report. also please give brainliest. this took a while.

Explanation:

edge

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How many moles of platinum atoms are in 2.408 x 1023

Artyom0805 [142]

answer:

The mass of 4×10²¹ atoms Pt is ≈ 1 g Pt.

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3 years ago

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IceJOKER [234]

Answer:

which one?

Explanation:

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3 years ago

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Copper is commonly mined as an ore with a variable percent composition of copper (II) sulfide. This ore is also sometimes referr

pantera1 [17]

Answer:

$m_{CuO}=93.6gCuO$

Explanation:

Hello,

In this case, the undergoing chemical reaction is:

$CuS+\frac{3}{2} O_2\rightarrow CuO+SO_2$

Thus, given the 1.00-kg of 12.5% ore, we can compute the theoretical yield of copper (II) oxide via stoichiometry:

$m_{CuO}^{theoretical}=1.00kgCuS*\frac{1000gCuS}{1kgCuS} *\frac{12.5gCuS}{100gCuS} *\frac{1molCuS}{95.6gCuS} *\frac{1molCuO}{1molCuS} *\frac{79.5gCuO}{1molCuO} \\\\m_{CuO}^{theoretical}=103.95gCuO$

Whereas the third factor accounts for the percent purity of the covellite. Then, given the percent yield, we can compute the actual yield by:

$m_{CuO}=103.95gCuO*0.9\\\\m_{CuO}=93.6gCuO$

Regards.

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3 years ago

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Answer:

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4 years ago

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