Milestone 3 Review

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3 mol KOH : 1 mol K3PO4

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10 moles O2

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What is the mass of one mole of Rhodium?

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103 g/mol

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124 grams

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How many particles are in 47g of pure iodine, I2?

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1.11 x 10^24

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How many particles are in 47g of pure iodine, I2?

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1.11 x 10^24

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A compound consists of 72.2% magnesium (Mg) and 27.8% nitrogen (N) by mass. What is the empirical formula? Options: Mg₄N₃, MgN₂, Mg₃N₂ , MgN

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Mg₃N₂ 

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A sample contains 36.95 g of mercury (Hg) and 13.05 g of chlorine (Cl). What is the empirical formula for this compound?

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HgCl₂

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The limiting reactant

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is used up first

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Use the equation 2 Al + 3 Cl₂ ---> 2 AlCl₃. If 2 moles of aluminum and 2 moles of chlorine are reacted, identify the limiting reactant.

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Cl₂