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MArishka [77]
3 years ago
10

Can someone help a dude out im stuck on this question

Chemistry
1 answer:
user100 [1]3 years ago
6 0

Answer:

i think it is created

Explanation:

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……….CO + ………H2 --> C8H18 + ……… H2O
Ksenya-84 [330]

Answer:

8CO + 17H2 = C8H18 + 8H2O

8, 17, 1, 8

5 0
2 years ago
if 14.0 g of aluminium reacts with excess sulfuric acid to produce 75.26 g of aluminium sulfate, what is the percent yield?
vlada-n [284]

Taking into account definition of percent yield, the percent yield for the reaction is 84.88%.

<h3>Reaction stoichiometry</h3>

In first place, the balanced reaction is:

2 Al + 3 H₂SO₄ → Al₂(SO₄)₃ + 3 H₂

By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:

  • Al: 2 moles
  • H₂SO₄: 3 moles
  • Al₂(SO₄)₃. 1 mole
  • H₂: 3 moles

The molar mass of the compounds is:

  • Al: 27 g/mole
  • H₂SO₄: 98 g/mole
  • Al₂(SO₄)₃: 342 g/mole
  • H₂: 2 g/mole

Then, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:

  • Al: 2 moles ×27 g/mole= 54 grams
  • H₂SO₄: 3 moles ×98 g/mole= 294 grams
  • Al₂(SO₄)₃: 1 mole ×342 g/mole= 342 grams
  • H₂: 3 moles ×2 g/mole= 6 grams

<h3>Mass of aluminium sulfate formed</h3>

The following rule of three can be applied: if by reaction stoichiometry 54 grams of aluminium form 342 grams of aluminium sulfate, 14 grams of aluminium form how much mass of aluminium sulfate?

mass of aluminium sulfate=\frac{14 grams of aluminium x342 grams of aluminium sulfate}{54 grams of aluminium}

<u><em>mass of aluminium sulfate= 88.67 grams</em></u>

Then, 88.67 grams of aluminium sulfate can be produced if 14.0 g of aluminium reacts with excess sulfuric acid.

<h3>Percent yield</h3>

The percent yield is the ratio of the actual return to the theoretical return expressed as a percentage.

The percent yield is calculated as the experimental yield divided by the theoretical yield multiplied by 100%:

percent yield=\frac{actual yield}{theorical yield} x100

where the theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.

<h3>Percent yield for the reaction in this case</h3>

In this case, you know:

  • actual yield= 75.26 grams
  • theorical yield= 88.67 grams

Replacing in the definition of percent yields:

percent yield=\frac{75.26 grams}{88.67 grams} x100

Solving:

<u><em>percent yield= 84.88%</em></u>

Finally, the percent yield for the reaction is 84.88%.

Learn more about

the reaction stoichiometry:

brainly.com/question/24741074

brainly.com/question/24653699

percent yield:

brainly.com/question/14408642

#SPJ1

7 0
1 year ago
Which type of nuclear radiation is the most penetrating and can pass through several layers of concrete shielding?
Fynjy0 [20]
Gamma radiation because it can pass through several centimeters of lead also
8 0
3 years ago
Read 2 more answers
The first stage in writing your paper is to make a list of questions that will enable you to research the topic. Your paper shou
Stella [2.4K]

Answer: There are two questions I could think of that weren't already on this list.

1) When did the genetic diversity of koalas decrease?

2) What kind of DNA does a koala have?

4 0
2 years ago
Which of the following would be organisms that are least closely related?
Sergio039 [100]

[Hello,BrainlyUser]

Answer:

[D] Same Phylum

Explanation:

To know the least closely related We need to the know this:

  • Domain
  • Kingdom
  • Phylum
  • Class Order
  • Family
  • genus
  • Species

Domain → Broadest ⇒ Least related.

Thus, In the answer choices we know that Phylum is the least Closely related.

[CloudBreeze]

6 0
2 years ago
Read 2 more answers
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