What is the mass of 2.30 moles of magnesium chloride, mgcl2?

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08-05-2018
Chemistry

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What is the mass of 2.30 moles of magnesium chloride, mgcl2?

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theatrelover11 theatrelover11 · Answer 1 · 2018-05-09T02:06:55+02:00

Mole Road Map:                      ÷         ×
Mass (grams) ⇄ Moles ⇄ Particles (atoms, molecules, etc.)
                    ×    ÷
↓    ↓
   Molar Mass 6.02 × 10^23 (Avogadro's number)

Molar Mass of Magnesium Chloride: 1 Mg: 24.3
+ 2 Cl: 2(35.5)
95.3 g/mol MgCl2
2.30 mol × 95.3 g/mol MgCl2 ≈ 219. grams MgCl2 (according to significant figures)