7.5 × 10²³ formula units of magnesium hydroxide have a mass of 70. g, when considering Avogadro's number and its molar mass.
What is Avogadro's number?
It represents the number of particles in 1 mole of particles.
- Step 1: Convert 7.5 × 10²³ formula units of Mg(OH)₂ to moles.
The conversion factor is Avogadro's number.
7.5 × 10²³ formula units × (1 mol/6.02 × 10²³ formula units) = 1.2 mol
- Step 2: Convert 1.2 moles of Mg(OH)₂ to grams.
The conversion factor is the molar mass of Mg(OH)₂.
1.2 mol × 58.32 g/mol = 70. g
7.5 × 10²³ formula units of magnesium hydroxide have a mass of 70. g, when considering Avogadro's number and its molar mass.
Learn more about Avogadro's number here: https://brainly.com/question/8946174
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