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2 years ago

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Iron metal reacts with oxygen gas you create iron three oxide FE 203 right the balanced reaction how many moles of iron three ox

ide are created from .20 moles of iron metal

1 answer:

castortr0y [4]2 years ago

7 0

<u>1) balanced chemical equation.</u>

$4\ Fe_{(s)}\ +\ 3\ O_{2}_{(g)}\ ->\ 2\ Fe_{2}O_{3}_{(s)}$

<u>2) solve.</u>

$=0.20\ mol\ Fe$ × $\frac{2\ mol\ Fe_{2}O_{3}}{4\ mol\ Fe}$

= 0.10 mol Fe₂O₃

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A 13.00 g sample of a compound contains 4.15 g potassium (k), 3.76 g chlorine (cl), and oxygen (o). calculate the empirical form

MrRissso [65]

To solve this problem, let us all convert the mass of each element into number of moles using the formula:

moles = mass / molar mass

Where,

molar mass K = 39.10 g / mol

<span>molar mass Cl = 35.45 g / mol</span>

molar mass O = 16 g / mol

<span>and mass O = 13 g – 4.15 g – 3.76 g = 5.09 g</span>

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