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Zepler [3.9K]
4 years ago
15

How many moles of water are produced when 3.0 moles of hydrogen gas react with 1.8 moles of oxygen gas?

Chemistry
1 answer:
swat324 years ago
8 0

Sorry for the late response but for this question, the answer is 3 moles of water.

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F 2.50 × 10−2 g of solid Fe(NO3)3 is added to 100. ML of a 1.0 × 10−4 M NaOH solution, will a precipitate form? (ksp=4 × 10−38 f
vladimir1956 [14]

Answer:

A precipitate will be formed

Explanation:

The Ksp equilibrium of Fe(OH)₃ is:

Fe(OH)₃ (s) ⇄ Fe³⁺(aq)+ 3OH⁻(aq)

And its expression is:

Ksp = 4x10⁻³⁸ = [Fe³⁺] [OH⁻]³

<em>Where the concentrations are concentrations in molarity in equilibrium,</em>

We can write Q as:

Q = [Fe³⁺] [OH⁻]³

<em>Where [] are actual concentrations in molarity of each specie.</em>

<em />

When Q>= Ksp; a precipitate is formed,

When Q< Ksp no precipitate is produced:

[OH⁻] = [NaOH] = 1.0x10⁻⁴M

[Fe²⁺] = 2.50x10⁻²g * (1mol / 179.85g) / 0.100L = 1.39x10⁻³M

<em>179.85g/mol is molar mass of Fe(NO₃)₂ and the volume of the solution is 0.100L = 100mL</em>

<em />

Q = [Fe³⁺] [OH⁻]³

Q = [ 1.39x10⁻³] [ 1.0x10⁻⁴]³

Q = 3.8x10⁻¹⁵

As Q >> Ksp; A precipitate will be formed

7 0
3 years ago
How many electrons does silver have to give up in order to achieve a pseudo-noble-gas electron configuration? 2 4 3 1?
posledela
Silver has to give up one electron in order to achieve a pseudo-noble gas electronic configuration.<span />
6 0
3 years ago
Read 2 more answers
ANSWER ASAP PLEASE I NEED HELP!
Vadim26 [7]

Answer:

If I remember correctly it should be B because it went from Cu^2 to Cu^0

Explanation:

7 0
2 years ago
c) If 21.0 g of potassium reacts with 62.5 g of barium nitride, what mass of potassium nitride will be produced?
MAXImum [283]

Explanation:

21.0 g of potassium reacts with 62.5 g of barium nitride, what mass of potassium nitride will be produced

8 0
3 years ago
Both covalent-network solids and ionic solids can have melting points well in excess of room temperature, and both can be poor c
Reil [10]

Answer:

1. Ionic solids dissolve in water.

2. Ionic solid is a better conductor compared to covalent solid.

Explanation:

1. Ionic solids dissolves in water because the water molecules hydrate the ions.When ionic compounds dissolve in water, they break apart into the ions that make them up through a process called dissociation.

Whereas covalent  solids don't dissolve in water, instead making a separate layer on the water's surface.

For example table salt that is NaCl is an ionic solid.When we add the salt in water it completely dissolves in water and disappears on the other hand oil is a covalent solid, when we add it in water it does not dissolve and forms a layer on water surface.

2.Ionic solids conducts electricity when it dissolves in water. Because in aqueous form there are ions which conducts electricity.

But covalent solids does not conduct in any form neither in pure form nor in aqueous form because they are bond with shared electrons having no ions which conducts electricity.

3 0
3 years ago
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