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8_murik_8 [283]
1 year ago
6

When magnesium chloride (MgCl2) dissolves in water, it dissociates into magnesium ions and chloride ions. How many moles of ions

form when a 42.66-gram sample of magnesium chloride is dissolved in water?
A.0.448 mol

B.0.714 mol

C.1.34 mol

D.2.14 mol
Chemistry
1 answer:
timama [110]1 year ago
7 0

0.448 moles of ions will form when a 42.66-gram sample of magnesium chloride is dissolved in water (option A).

<h3>How to calculate number of moles?</h3>

According to this question, when magnesium chloride (MgCl2) dissolves in water, it dissociates into magnesium ions and chloride ions as follows:

MgCl2(aq) ⟶ Mg2+(aq) + Cl−(aq)

However, if a 42.66-gram sample of magnesium chloride is dissolved in water, this means that 42.66g/molecular mass of MgCl2 will be the number of moles of the ionic products.

molecular mass of MgCl2 = 95.3g/mol

moles = 42.66g ÷ 95.3g/mol = 0.448mol

Therefore, 0.448 moles of ions will form when a 42.66-gram sample of magnesium chloride is dissolved in water.

Learn more about moles at: brainly.com/question/26416088

#SPJ1

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