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raketka [301]
3 years ago
7

PLS HELP

Chemistry
1 answer:
AnnyKZ [126]3 years ago
4 0

Answer:

linear ,trigonal planar,tethradral geometry

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What is the relative rate of diffusion of hydrogen and nitrogen ​
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2.645

Explanation:

Rate of diffusion formula:

Sqrt(mass2/mass1)

>>sqrt(14/2)

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8 0
3 years ago
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6.5 Moles of Al reacts with 7.2 Moles of H2O What is the limiting reactant and calculate the Theoretical Yield?
SVEN [57.7K]

Answer:

H₂O is the limiting reactant

Theoretical yield of 240 g Al₂O₃ and 14 g H₂

Explanation:

Find how many moles of one reactant is needed to completely react with the other.

6.5 mol Al × (3 mol H₂O / 2 mol Al) = 9.75 mol H₂O

We need 9.75 mol of H₂O to completely react with 6.5 mol of Al.  But we only have 7.2 mol of H₂O.  Therefore, H₂O is the limiting reactant.

Now find the theoretical yield:

7.2 mol H₂O × (1 mol Al₂O₃ / 3 mol H₂O) × (102 g Al₂O₃ / mol Al₂O₃) ≈ 240 g Al₂O₃

7.2 mol H₂O × (3 mol H₂ / 3 mol H₂O) × (2 g H₂ / mol H₂) ≈ 14 g H₂

Since the data was given to two significant figures, we must round our answer to two significant figures as well.

4 0
3 years ago
Where are elements that form molecules of two of the same atoms commonly found on the periodic table?
Sveta_85 [38]
Elements that form diatomic molecules, or molecules of two atoms each, are commonly found on the right side of the periodic table.
6 0
3 years ago
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