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Mumz [18]
3 years ago
15

Please help! Thanks

Chemistry
1 answer:
trapecia [35]3 years ago
7 0

Th actual yield of the reaction is 24.86 g

We'll begin by calculating the theoretical yield of the reaction.

2Na + Cl₂ → 2NaCl

Molar mass of Na = 23 g/mol

Mass of Na from the balanced equation = 2 × 23 = 46 g

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mass of NaCl from the balanced = 2 × 58.5 = 117 g

From the balanced equation above,

46 g of Na reacted to produce 117 g of NaCl.

Therefore,

11.5 g of Na will react to produce = (11.5 × 117) / 46 = 29.25 g of NaCl.

Thus, the theoretical yield of NaCl is 29.25 g.

Finally, we shall determine the actual yield of NaCl.

  • Percentage yield = 85%
  • Theoretical yield = 29.25 g
  • Actual yield =?

Actual yield = Percent yield × Theoretical yield

Actual yield = 85% × 29.25

Actual yield = 0.85 × 29.25 g

Actual yield = 24.86 g

Learn more about stoichiometry: brainly.com/question/25899385

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vaieri [72.5K]

Answer:

Density, d=2.09\ g/cm^3

Explanation:

Given that,

Mass of a flask is 450 g

Volume of benzene added to the flask is 145 mL or 145 cm³

The weight of the flask and benzene is found to be 754 g.

We need to find the density of the benzene.

Weight of benzene added = total weight of flask and benzene-mass of flask

m = 754 g - 450 g

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Density = mass/volume

So,

d=\dfrac{304\ g}{145\ cm^3}\\\\d=2.09\ g/cm^3

So, the density of the benzene is 2.09\ g/cm^3.

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Who developed the concept that the total pressure of a mixture of gases is the sum of their partial pressures?.
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Figure 2 represents part of the structure of graphite.
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The answers include the following:

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<h3>What is Graphite?</h3>

This is referred to as an allotrope of carbon and it is the most stable form. it is used in the production of substances such as pencil, electrode etc.

Graphite is able to conduct electricity because of the presence of delocalized electrons and is slippery due to its atoms being able to slide over one another.

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How does the concentration of the substrate in an enzyme-controlled chemical reaction change over time?
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The rate of a chemical reaction is directly proportional to the concentration.

The reaction rate increases with increasing substrate concentration, but levels off at a much lower rate. By increasing the enzyme concentration, the maximum reaction rate greatly increases.

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