Answer: Melting point of the naphthalene is 80
.
Explanation:
Melting point of a substance is temperature at which given solid changes its state from solid to liquid. It is also referred as freezing point of the substance.
Freezing point of substance is a temperature at which given substance changes its state from liquid to solid.
Here, the solid piece of naphthalene is heated and remains at 80°C until it is completely melted.
The mass in grams of NH₃ produced from the reaction is 3.4 g
<h3>Balanced equation</h3>
We'll begin by writing the balanced equation for the reaction. This illustrated below:
N₂ + 3H₂ -> 2NH₃
From the balanced equation above,
1 dm³ of N₂ reacted to produced 2 dm³ NH₃
<h3>How to determine the volume of NH₃ produced</h3>
From the balanced equation above,
1 dm³ of N₂ reacted to produced 2 dm³ NH₃
Therefore,
2.24 dm³ of N₂ will react to produce = 2.24 × 2 = 4.48 dm³ of NH₃
<h3>How to determine the mass of NH₃ produced</h3>
We'll begin by obtained the mole of 4.48 dm³ of NH₃. Details below:
22.4 dm³ = 1 mole NH₃
Therefore,
4.48 dm³ = 4.48 / 22.4
4.48 dm³ = 0.2 mole of NH₃
Finally, we shall determine the mass of NH₃ as follow:
- Molar mass of NH₃ = 17 g/mol
- Mole of NH₃ = 0.2 mole
- Mass of NH₃ =?
Mass = mole × molar mass
Mass of NH₃ = 0.2 × 17
Mass of NH₃ = 3.4 g
Learn more about stoichiometry:
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The answer is in the photo
You could decrease the volume by a factor of 3. A decrease in volume will cause an increase in pressure
Salt dissolving in water is usually considered to be a physical change so I’m pretty sure it’s that sorry if I’m wrong
