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3 years ago

Which is the second step in the dissolving process?

Chemistry

2 answers:

worty [1.4K]3 years ago

8 0

Answer : The correct option is, The solvent molecules surround the solute particles.

Explanation :

Dissolving process : It is defined as the process in which solute particles interact with solvent molecules.

When solute particles comes in contact with the solvent particles, firstly the solute particles break down into ions and this result in the Lattice energy of the solute particles.

When solute particles break down, it gets surrounded with the solvent particles and it results in the Hydration enthalpy of the particles.

Hence, the second step of dissolving process is when solvent molecules surround the solute molecules.

geniusboy [140]3 years ago

8 0

Answer:

C). The solvent molecules surround the solute particles.

Explanation:

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By the reaction 2 moles of KMnO₄ reacts with 1 mole of H₂C₂O₄, thus, the moles of H₂C₂O₄ that react were:

2,872x10⁻³ mol KMnO₄× $\frac{1mol H_{2}C_{2}O_{4}}{2molKMnO_{4}}$ = 1,436x10⁻³ moles of H₂C₂O₄

As the volume of the sample was 200,0mL≡ 0,2000L, The concentration of H₂C₂O₄ is:

$\frac{1,436x10^{-3} mol}{0,2000L}$ = 7,1800x10⁻³ M

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