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3 years ago

What mass of phosphorus and of chlorine is needed to produce 87 g of pentachloride if the reaction yield is 60%?

Chemistry

1 answer:

Anna11 [10]3 years ago

3 0

Hey there!

theoretical yield = (87* 100 ) / 60 = 145 g of phosphorous pentachloride

the reaction for this process is :

molar mass P2O5 => 239.2125 g/mol

molar mass P4 => 123.90 g/mol

molar mass Cl2 => 70.9060 g/mol

P4 + 5 Cl2 --------------> 2 P2Cl5

moles of P2O5 :

145 g / 239.2125 => 0.6062 moles of P2O5

Therefore:

moles of P4 = 0.6062 mol / 2 => 0.3031 moles

moles of Cl2 = 5/2 * 0.6062 mol = 1.5154 moles

mass of P4 ( phosphours ) = 0.3031 mol * 123.90 => 37.554 grams

mass of Cl2 ( chlorine ) = 1.5154 mol * 70.9060 => 107.45 grams

Hope That helps!

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<u>Answer:</u> The daughter nuclide formed by the beta decay of given isotope is $_{30}^{64}\textrm{Zn}$

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Beta decay is defined as the process in which beta particle is emitted. In this process, a neutron gets converted to a proton and an electron.

The released beta particle is also known as electron.

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We are given:

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The chemical equation for the beta decay process of $_{29}^{64}\textrm{Cu}$ follows:

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4 years ago

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Answer:

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2 years ago

What is the freezing point of a solution of 498mL of water (solute) dissolved in 2.50 L of ethanol (solvent), C2H5OH? The densit

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Answer:

Freezing T° of solution is -142.4°C

Explanation:

This excersise is about colligative properties, in this case freezing point depression,

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We replace at formula: - 114.6°C - Freezing T° solution = 1.99 °C/m . 13.9 m . 1

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- Freezing T° solution = 27.8°C + 114.6°C

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