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JulijaS [17]
3 years ago
9

When an equation is used to calculate the amount of product that will form during a reaction, the value obtained is called the _

____.
Chemistry
2 answers:
soldier1979 [14.2K]3 years ago
8 0

Answer:

Theoretical yield

Explanation:

The theoretical yield of a product obtained from a reaction is the maximum obtainable amount of product from the reaction under ideal conditions and if all the limiting reactant is used up in the reaction. the actual yield however is lower a little than the theoretical yield in value

Oksi-84 [34.3K]3 years ago
7 0

Answer:

Theoretical yield.

Explanation:

Hello,

In stoichiometry, chemical quantities are computed in order to quantify a chemical reaction, in such a way, a yielded amount could be understood as the obtained either mass or moles of a particular product. Such obtained amount could be real which is gotten at a laboratory or theoretical which is gotten via a stoichiometric formula or equation, in such a way, when an equation is used to calculate the amount of product that will form during a reaction, the value obtained is called the theoretical yield which is the yield we expect to obtain once the chemical reaction goes to completion.

Best regards.

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If 20 grams of Zinc phosphate reacts with excess hydrochloric acid and produces 18 grams of Zinc chloride what is the percent yi
fenix001 [56]

Answer:

Y=85\%

Explanation:

Hello!

In this case, since we know the balanced chemical reaction, we are first able to realize there is a 1:3 mole ratio between zinc phosphate and zinc chloride; it means that we can first compute the moles of the desired product via stoichiometry:

n_{ZnCl_2}=20gZn_3(PO_4)_2*\frac{1molZn_3(PO_4)_2}{386.11gZn_3(PO_4)_2}*\frac{3molZnCl_2}{1molZn_3(PO_4)_2}=0.16gZnCl_2

Next, since those moles are associated with the theoretical yield of zinc chloride, we obtain the corresponding mass:

m_{ZnCl_2}^{theoretical}=0.16molZnCl_2*\frac{136.29gZnCl_2}{1molZnCl_2} =21gZnCl_2

Finally, we compute the percent yield by diving the actual yield (18 g) by the theoretical yield:

Y=\frac{18g}{21g}*100\%\\\\Y=85\%

Best regards!

4 0
2 years ago
Explain how earth plates and lithosphere are related
AnnyKZ [126]

Crust, the upper layer of the Earth, is not always the same. Crust under the oceans is only about 5 km thick while continental crust can be up to 65 km thick. Also, ocean crust is made of denser minerals than continental crust.

The tectonic plates are made up of Earth’s crust and the upper part of the mantle layer underneath. Together the crust and upper mantle are called the lithosphere and they extend about 80 km deep. The lithosphere is broken into giant plates that fit around the globe like puzzle pieces. These puzzle pieces move a little bit each year as they slide on top of a somewhat fluid part of the mantle called the asthenosphere. All this moving rock can cause earthquakes.

The asthenosphere is ductile and can be pushed and deformed like silly putty in response to the warmth of the Earth. These rocks actually flow, moving in response to the stresses placed upon them by the churning motions of the deep interior of the Earth. The flowing asthenosphere carries the lithosphere of the Earth, including the continents, on its back.

6 0
3 years ago
Pls help! Polonium has a large, unstable nucleus. Through which process is it most likely to become stable?
Stella [2.4K]

The process through which Polonium is most likely to become stable is: B. alpha decay.

An unstable element refers to a chemical element that lose particles because its nucleus contain an excess of internal energy (neutron or proton).

This ultimately implies that, an unstable element is radioactive in nature.

In Science, some examples of an unstable element are:

  • Tritium.
  • Bismuth-209 .
  • Xenon.
  • Polonium.

Polonium is a chemical element with a large, unstable nucleus.

Basically, the most stable isotope of Polonium is Polonium-209, which typically undergoes an alpha decay to form lead-205 and the emission of an alpha particle.

⇒  ^{209}_{84}Po ----> ^{205}_{82}Pb \;+\; ^{4}_{2}\alpha

In conclusion, we can deduce from the above chemical equation that Polonium is most likely to become stable through an alpha decay.

Read more: brainly.com/question/18214726

5 0
2 years ago
Read 2 more answers
How many Oxygen atoms in: 5H2SO3
astra-53 [7]

Answer:

20

Explanation: I think

5 0
2 years ago
Read 2 more answers
N2 + 3H2 mc011-1.jpg 2NH3<br> What is the mole ratio of hydrogen to ammonia?
hjlf
1 N₂ + 3 H₂ = 2 NH₃

Mole  ratio <span> of hydrogen to ammonia :

3 moles H</span>₂  :  2 moles NH₃   or  3 : 2

hope this helps!
3 0
3 years ago
Read 2 more answers
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