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e-lub [12.9K]
2 years ago
15

How many formula units of silver fluoride, AgF, are equal to 42.15 g f this substance?

Chemistry
1 answer:
s2008m [1.1K]2 years ago
7 0

Answer:

1.99 x 10²³ formula units

Explanation:

Given parameters:

Mass of AgF  = 42.15g

Unknown:

The amount of formula units

Solution:

To solve this problem, we set out by find the number of moles in this compound from the given mass.

   Number of moles  = \frac{mass}{molar mass}

molar mass of AgF  = 107.9 + 19  = 126.9g/mol

  Number of moles  = \frac{42.15}{126.9}   = 0.33 moles

       1 mole of a substance =  6.02 x 10²³ formula units

         0.33 moles of AgF  = 0.33 x 6.02 x 10²³  = 1.99 x 10²³ formula units

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<u>Stimulants </u> often cause overactive eye movement

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3 years ago
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gavmur [86]
The balanced combustion reaction of propane, C₃H₈, is

C₃H₈ + 5 O₂ → 3 CO₂ + 4 H₂O

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Molar mass of oxygen: 32 g/mol
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Moles of oxygen needed to completely react propane:
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3 years ago
Before you start an investigation, you see the Hazard symbol for Electrical Hazard. What safety steps should you follow when con
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Explanation:

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2 years ago
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3 0
3 years ago
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Consider the reaction NOBr(g) =&gt; NO(g) + 1/2 Br2(g). A plot of 1/[NOBr] vs time give a straight line with a slope of 2.00 M-1
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Answer:

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