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2 years ago

15

Improper hot holding and improper cooling are both example of

2 answers:

elena-14-01-66 [18.8K]2 years ago

8 0

Lab safey violations

levacccp [35]2 years ago

4 0

It is an example of food safety abuse. Improper hot holding and cooling of food can affect the chemicals in the food. It can change the compounds which can be contaminated already by bacteria. It can change the taste, color, smell, or texture of the food because of the sudden change of its temperature.

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If the hydrogen ion concentration is 10-7M, what is the pH of the solution?<br><br> Show all work.

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Read 2 more answers

How long would it take to produce enough aluminum to make a case (24 cans) of aluminum soft drink cans if each can used 3 g of a

kozerog [31]

Answer : It takes time to produce 3 g of aluminium is, 165 seconds.

Explanation :

As we are given that the mass of aluminium is, 3 grams. Now we have to calculate the total mass of aluminum.

Total mass of aluminum = 3g × 24 = 72 g

Now we have to calculate the moles of aluminum.

$\text{Moles of Al}=\frac{\text{Mass of Al}}{\text{Molar mass of Al}}$

Molar mass of Al = 27 g/mol

$\text{Moles of Al}=\frac{72g}{27g/mol}=2.67mol$

As, 1 mole of Al has 3 Faradays

So, 2.67 mole of Al has = $2.67\times 3=80.1$ Faradays

and,

Charge = $80.1\text{ Faradays}\times \frac{96500\text{ coulombs}}{1\text{ Faradays}}=7.73\times 10^6\text{ coulombs}$

Current = $5.00\times 10^4A\times \frac{93.9}{100}=46950A$

Now we have to calculate the time.

$Time=\frac{Charge}{Current}=\frac{7.73\times 10^6}{46950}=164.6s\aaprox 165s$

Hence, it takes time to produce 3 g of aluminium is, 165 seconds.

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2 years ago