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arlik [135]
3 years ago
13

How many moles of phosphorus trichloride are in 200 grams of the molecule???

Physics
1 answer:
sesenic [268]3 years ago
8 0
<h3>Answer:</h3>

1.46 moles

<h3>Explanation:</h3>

<u>We are given</u> ;

  • Mass of  phosphorus trichloride is 200 g

We are required to calculate the number of moles of phosphorus trichloride;

  • We know that to calculate the number of moles we divide mass by the molar mass.
  • That is;

Moles = Mass ÷ Molar mass

Molar mass of phosphorus trichloride = 137.33 g/mol

Therefore;

Moles = 200 g ÷ 137.33 g/mol

           = 1.456 moles

           = 1.46 moles

Therefore, the moles of phosphorus trichloride are 1.46 moles

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Answer:

a) 138 units

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c) 17 units

d) Total Cost = $353.35

Explanation:

Given:

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Charge of inventory holding = 30% of cost

Lead time = 7 days

Now,

a) Economic Order Quantity =  \sqrt\frac{2\times\textup{Annual Demand}\times\textup{Cost per Order}}{\textup{Carrying cost}}

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Cost per Order = Cost of Box + Processing Costs

= 30 cents + $10

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and, Carrying Cost = \frac{\textup{Total Inventory Cost}}{\textup{total annual demand}}

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= \frac{\$10.30\times2400}\times\frac{25}{100}}{2400}

= $2.575

Therefore,

Economic Order Quantity =  \sqrt\frac{2\times\textup{2400}\times\textup{10.30}}{\textup{2.575}}

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b) Reorder Point

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= 46.67 ≈ 47 units

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d) Total Annual Cost (Total Inventory Cost)

= Ordering Cost + Holding Cost

Now,

The ordering Cost = Cost per Order × Total Number of orders per year

= $10.30 × 17

= $175.1

and,

Holding Cost = Average Inventory Held × Carrying Cost per unit

Average Inventory Held = \frac{\textup{0+138}}{\textup{2}} =  69

Carrying Cost per unit = $2.575

Holding Cost = 69 × $2.575 =  

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Therefore,

Total Cost = Ordering Cost + carrying cost

= $175.1  + $177.675 = $353.35

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