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Kaylis [27]
3 years ago
15

What stresses will shift the reaction to increase the products

Chemistry
1 answer:
AveGali [126]3 years ago
7 0

Answer:

Change in molarity, temperature, volume/pressure depending on the conditions given

Explanation:

It really depends on the type of a reaction, however, we may apply general trends and see every possibility:

  • if we increase the concentration of products, then, according to the principle of Le Chatelier, the equilibrium will shift toward the formation of products;
  • if we have an endothermic reaction, increasing heat will lead a shift to the right and toward formation of products, since heat might be considered a reactant as well;
  • if we have an exothermic reaction, removing heat/decreasing temperature will lead to an increase in products, as we're removing one of our products, heat, and system will try to rebuild the amount of heat lost forming the other products as a result as well;
  • if we have gaseous substances in a reaction, an increase in pressure will shift the equilibrium to the right if we have a greater amount in moles of reactant gases compared to products, this is also known as a decrease in volume;
  • if we have gaseous substances in a reaction, a decrease in pressure will shift the equilibrium to the right if we have a greater amount in moles of product gases compared to reactants, this is also known as an increase in volume.
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What is the % yield when 12g of Mg react with HCl to produce 0.2g of H2?
goblinko [34]

Answer:

The yield is 20 %.

Explanation:

Mg + 2 HCl → MgCl2 + H2

(12 g Mg) / (24.30506 g Mg/mol) x (1 mol H2 / 1 mol Mg) x (2.015894 g H2/mol) = 0.9953 g H2.

(0.2 g) / (0.9953 g) = 0.20 = 20% yield

5 0
3 years ago
Cortisone consists of molecules, each of which contains 21 atoms of carbon (plus other atoms). the mass percentage of carbon in
GalinKa [24]

Now to solve this problem, we are given the number of atoms therefore we must first convert this into number of moles. We can do this by using the Avogadro’s number. Calculating for number of moles of Carbon:

number of moles Carbon = 21 atoms of carbon (1 mole / 6.022 x 10^23 atoms C)

number of moles Carbon = 3.49 x 10^-23 mol C

 

Converting this to mass by multiplying the molar mass of C:

mass Carbon = 3.49 x 10^-23 mol C (12 g / mol)

mass Carbon = 4.18 x 10^-22 g

 

Therefore the mass of one molecule of Cortisone is:

mass of 1 molecule Cortisone = 4.18 x 10^-22 g / 0.6998

mass of 1 molecule Cortisone = 5.98 x 10^-22 g per molecule

 

Converting this to mass per 1 mol of Cortisone, by using again the Avogadro’s number:

mass of 1 mol Cortisone = (5.98 x 10^-22 g / molecule) (<span>6.022 x 10^23  molecules / mol)</span>

mass of 1 mol Cortisone = 360.10 g / mol = molar mass of cortisone

 

Answer:

360.10 g / mol

4 0
3 years ago
Antacids work to relieve stomach acids because of which of the following types of reactions?
Anastaziya [24]

<u>Answer:</u> The correct answer is Option B.

<u>Explanation:</u>

Decomposition is a type of chemical reaction in which larger compound breaks down into two or more smaller compounds.

AB\rightarrow A+B

Double displacement reactions is defined as the chemical reaction in which exchange of ions takes place.

AB+CD\rightarrow AD+CB

Synthesis reaction is a type of reaction in which two or more smaller compounds combines to form a single large compound.

A+B\rightarrow AB

Single displacement reaction is a type of reaction in which a more reactive metal displaces a less reactive metal from its chemical reaction.

A+BC\rightarrow AC+B

In stomach, an acid is present known as hydrochloric acid and to neutralize its effect, antacid is taken which has CaCO_ as a component.

The reaction between HCl and CaCO_3 is a type of neutralization reaction and it is a type of double displacement reaction.

The equation between the two follows:

CaCO_3+HCl\rightarrow CaCl_2+H_2O+CO_2

Hence, the correct answer is Option B.

4 0
3 years ago
Which one from the drop down box
mel-nik [20]
CH4+ 2O2---> CO2+ 2H2O I believe would be correct.
7 0
4 years ago
The element Osmium has _ neutrons in its nucleus
Veseljchak [2.6K]

Answer:

114

Explanation:

no

3 0
3 years ago
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