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ohaa [14]
3 years ago
5

Two students were in Chemistry Class completing an assigned lab experiment. The two students were to mix 5.34g CaCl2 with CuSO4

to make a 6.3L solution
. Complete and balance the reaction with the correct Products:
CaCl2 + CuSO4  ______ + ______
Chemistry
1 answer:
skelet666 [1.2K]3 years ago
3 0

Answer:

CaCl₂ + CuSO₄ → CaSO₄ + CuCl₂.

Explanation:

  • It is a replacement reaction, that cations and anions are replaced with each other.

So, it gives CaSO₄ and CuCl₂.

  • To balance the reaction, we apply the law of conversation of mass, that the no. of atoms in the reactants side is equal to that in the products side.

So, the balanced reaction is:

<em>CaCl₂ + CuSO₄ → CaSO₄ + CuCl₂.</em>

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35.0 mL of 12.0 M HCl is added to enough water to have a final volume of 1.20 L. What is the molarity of the final solution?
creativ13 [48]
<h3>Answer:</h3>

0.35 M

<h3>Explanation:</h3>

<u>We are given;</u>

  • Initial volume as 35.0 mL or 0.035 L
  • Initial molarity as 12.0 M
  • Final volume is 1.20 L

We are required to determine the final molarity of the solution;

  • Dilution involves adding solvent to a solution to make it more dilute which reduces the concentration and increases the solvent while maintaining solute constant.
  • Using dilution formula we can determine the final molarity.

M1V1 = M2V2

  • Rearranging the formula;

M2 = M1V1 ÷ V2

     = (12.0 M × 0.035 L) ÷ 1.2 L

      = 0.35 M

Thus, the final concentration of the solution is 0.35 M

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3 years ago
MULTIPLE CHOICE QUESTION
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