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2 years ago

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

Physics

1 answer:

sesenic [268]2 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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Two engineering students, John with a weight of 92 kg and Mary with a weight of 46 kg, are 30 m apart. Suppose each has a 0.04%

Hoochie [10]

Answer:

F = 6.27 x 10 ¹⁹ N

Explanation:

Given

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q₁ = 3.54 x 10⁶ C

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q₂ = 1.773 x 10⁶ C

Now to determine the electrostatic force con use the equation

F = K * q₁ * q₂ / d²

K = 8.99 x 10 ⁹

F = 8.99 x 10 ⁹ * 3.54 x 10⁶ C * 1.773 x 10⁶ C / (30m)²

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2 years ago

A container is filled with an ideal diatomic gas to a pressure and volume of P1 and V1, respectively. The gas is then warmed in

lilavasa [31]

Answer:

Explanation:

The change is as follows

P₁ V₁ to 3P₁, V₁ ( constt volume ) --- first process

3P₁,V₁ to 3P₁ , 5V₁ ( constt pressure ) ---- second process

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3 years ago

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Answer:

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Given data:

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q = ne

$n = \frac{1.6\times 10^{-19}}{2.02\times 10^{-7}}$

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