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Mumz [18]
3 years ago
9

The number of molecules in 1.0 mole of h2o is the same as in one mole of o2.

Chemistry
1 answer:
Elis [28]3 years ago
8 0
True. The number of molecules in one mole of any substance is the same, the Avogadro number which is 6.022 * 10^23.
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For the following reaction, 5.04 grams of nitrogen gas are allowed to react with 8.98 grams of oxygen gas: nitrogen(g) + oxygen(
OLga [1]

Answer:

1. 10.8 g of NO

2. N₂ is the limting reagent

3. 3.2 g of O₂ does not react

Explanation:

We determine the reaction: N₂(g) + O₂(g) →  2NO(g)

We need to determine the limiting reactant, but first we need the moles of each:

5.04 g / 29 g/mol = 0.180 moles N₂

8.98 g / 32 g/mol = 0.280 moles O₂

Ratio is 1:1, so the limiting reactant is the N₂. For 0.280 moles of O₂ I need the same amount, but I only have 0.180 moles of N₂

Ratio is 1:2. 1 mol of N₂ can produce 2 moles of NO

Then, 0.180 moles of N₂ may produce (0.180 .2) / 1 =  0.360 moles NO

If we convert them to mass → 0.360 mol . 30 g/1 mol = 10.8 g

As ratio is 1:1, for 0.180 moles of N₂, I need 0.180 moles of O₂.

As I have 0.280 moles of O₂, (0.280 - 0.180 ) = 0.100 moles does not react.

0.1 moles . 32 g/mol = 3.2 g of O₂ remains after the reaction is complete.

8 0
3 years ago
Read 2 more answers
Please answer he questions
Nastasia [14]

"Work done by a constant force on an object is the product of the force and the distance moved by the object in the direction of the force" -textbook

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6 0
3 years ago
2
Anton [14]

Answer:

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Explanation:

I can't see the options but I hope this helps!

8 0
2 years ago
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What is FALSE about nitrogen gas and carbondioxide?
Umnica [9.8K]

Answer:

4

Explanation:

both are gases, both are compounds , they are nonmetal so that leaves 4

5 0
3 years ago
A graph of 1/[A]t vs. time will give you a straight line if the reaction is which order?
castortr0y [4]
The answer is:  "second order" .
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5 0
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