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sveticcg [70]
3 years ago
11

25) How many total ions would be present when an ionic compound is formed between a

Chemistry
1 answer:
avanturin [10]3 years ago
7 0

Answer:

4 ions

1  M³⁺ ion and 3 NO₃⁻ ions ( Where M³⁺ stands for the group 13 cation).

Explanation:

Group 13 elements are Boron , Aluminium, Galium, Indium and Thalium. When they form ionic compounds they can lose their  three valence electrons to form a tripositive (+3) ion. Nitrate ion is a negative ion with a single negative(-1) charge. When these two form a compound 3 univalent negative nitrate ions must combine with one tripositive group 13 element to form a neutral compound. So the total no of ions is 4.

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Explanation:

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2 years ago
What mass of iron is formed when 10 grams of carbon react with 80 grams of iron iii oxide?
yKpoI14uk [10]

Answer:

55.85 grams of Fe is formed.

Explanation:

Identify the reaction:

2Fe₂O₃  +  3C  →  4Fe  +  3CO₂

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(mass / molar mass)

10 g / 12 g/m = 0.83 moles C

80 g / 159.7 g /m = 0.500 moles Fe₂O₃

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0.5 moles of oxide, will need ( 0.5  . 3)/ 2 = 0.751 mol

I have 0.83 moles of C, so C is the excess.

The limiting is the oxide.

3 mol of C need 2 mol of oxide to react

0.83 mol of C, will need (0.83  . 2)/ 3 = 0.553 mol of oxide, and I only have 0.5 (That's why Fe₂O₃ is the limiting)

Ratio is 2:4 (double)

If I have 0.5 moles of oxide, I will produce the double, in the reaction.

1 mol of Fe, will be produce so its mass is 55.85 g

5 0
3 years ago
If the mercury in a manometer raises 30.0 millimeters due to a change in pressure, what is the corresponding change in pressure
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Answer:

0.03947 atm

Explanation:

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Explanation:

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3 years ago
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your answer for that problem is 34.5

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2 years ago
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