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Mariulka [41]
3 years ago
13

Find the mass of 1.0 x 1025 formula units of iron (II) phosphide

Chemistry
1 answer:
elena55 [62]3 years ago
8 0

3295.1 g iron (II) phosphide of Fe₃P

Explanation:

To solve this question we use the Avogadro's number which tell us that in 1 mole of a substance we have 6.022 × 10²³ particles.

In our chase for iron (II) phosphide (Fe₃P) we have:

in if        1 mole of Fe₃P we have 6.022 × 10²³ formula units

then in   X moles of Fe₃P we have 1.0 × 10²⁵ formula units

X = (1 ×  1.0 × 10²⁵) / (6.022 × 10²³)

X = 0.1661 × 10² = 16.6 moles of Fe₃P

number of moles = mass / molecular weight

mass = number of moles × molecular weight

mass of Fe₃P = 16.6 × 198.5 = 3295.1 g

Learn more about:

Avogadro's number

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2 years ago
How many grams of oxygen gas (02) are needed to completely react with 9.30 moles
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Answer:

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Explanation:

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^         ^

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