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Semmy [17]
3 years ago
5

PLEASE HELP !!!!! PWEASEEEEE

Chemistry
1 answer:
Fantom [35]3 years ago
5 0

Answer:

A option is correct

hope it helps

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How would you find 8m of carbon chloride using 87.9g carbon chloride
vaieri [72.5K]

Answer:

Explanation:

I want to believe that your question is how to find an 8M carbon chloride solution using the given mass of the compound.

The problem clearly identifies with concentration of a substance. Molarity is one of the ways of expressing concentration. It is the amount of solute of a substance per volume of solution.

     Molarity  = \frac{number of moles of solute}{Volume of solution}

To find the right mix that will give us 8M carbon chloride solution, let's explore how to figure out the appropriate volume.

Clearly given is the mass of the compound, convert to number of moles.

  Number of moles  = \frac{mass}{molar mass}

            Molar mass of carbon chloride(CCl₄)  = 12 + 4(35.5)  = 154g/mol

Number of moles  = \frac{87.9}{154}   = 0.57moles

To find the volume;

            8    =    \frac{0.57}{v}

            volume = 0.071L or 71mL

7 0
3 years ago
What is the final concentration of cl- ion when 250 ml of 0.20 m cacl2 solution is mixed with 250 ml of 0.40 m kcl solution? (as
serious [3.7K]

CaCl2 and KCl are both salts which dissociate in water when dissolved. Assuming that the dissolution of the two salts are 100 percent, the half reactions are:

<span>CaCl2 ---> Ca2+  +  2 Cl-</span>

KCl ---> K+ + Cl-

Therefore the total Cl- ion concentration would be coming from both salts. First, we calculate the Cl- from each salt by using stoichiometric ratio:

Cl- from CaCl2 = (0.2 moles CaCl2/ L) (0.25 L) (2 moles Cl / 1 mole CaCl2)

Cl- from CaCl2 = 0.1 moles

 

Cl- from KCl = (0.4 moles KCl/ L) (0.25 L) (1 mole Cl / 1 mole KCl)

Cl- from KCl = 0.1 moles

 

Therefore the final concentration of Cl- in the solution mixture is:

Cl- = (0.1 moles + 0.1 moles) / (0.25 L + 0.25 L)

Cl- = 0.2 moles / 0.5 moles

<span>Cl- = 0.4 moles             (ANSWER)</span>

6 0
3 years ago
According to Le Châtelier's principle, an increase in temperature will shift the equilibrium position toward the products in an
Sav [38]

The statement "According to Le Châtelier's principle, an increase in temperature will shift the equilibrium position toward the products in an endothermic reaction" is definitely true.

<h3>What is Le Châtelier's principle?</h3>

Le Châtelier's principle may be defined as transformations in the temperature, pressure, volume, or concentration of a system that will lead to observable and conflicting changes in the strategy in order to accomplish a refreshed equilibrium state.

According to Le Châtelier's principle, an increase in temperature generates the equilibrium to move in the direction of the product of the endothermic reaction, and the decrease in the temperature rationales the equilibrium to move in the direction of the product of the exothermic reaction.

Therefore, it is well described above.

To learn more about Le Châtelier's principle, refer to the link:

brainly.com/question/2943338

#SPJ1

7 0
2 years ago
Con someone please help me balance this equation
Paladinen [302]

Answer:

3, 2, 1, 6

Explanation:

- Make a list of each element and the amount it contains.

- Multiply them out to get them equivalent.

- Hope that helped! Please let me know if you need further explanation.

8 0
3 years ago
Read 2 more answers
Why do two objects with the same charge always repel each other?
Delicious77 [7]
Because same charges repel each other while opposite charges attract. :)

4 0
3 years ago
Read 2 more answers
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