Answer:
9.64g
Explanation:
The balanced equation for the reaction is given below:
2NH3 (g) —> 3H2 (g) + N2 (g)
Next, we need to calculate the mass NH3 that decomposed and the mass of H2 produced from the balanced equation. This is illustrated below:
Molar Mass of NH3 = 14 + (3x1) = 14 + 3 = 17g/mol
Mass of NH3 that decomposed from the balanced equation = 2 x 17 = 34g
Molar Mass of H2 = 2x1 = 2g/mol
Mass of H2 produced from the balanced equation = 3 x 2 = 6g.
Now, we can obtain the mass of H2 formed from 54.6g of NH3 as follow:
From the balanced equation above,
34g of NH3 decomposed to produce 6g of H2.
Therefore, 54.6g of NH3 will decompose to produce = (54.6x6)/34 = 9.64g of H2
Therefore, 9.64g of H2 can be obtained from 54.6g of NH3.
Explanation:
Atoms:
These are the smallest indivisible particles that takes part in chemical reactions. Chemical reactions simply involves the combination of atoms.
Each form of matter is made up of small particles called atoms. Atoms are distinct and are different from one another. There are different known atoms called elements and they are arranged on the periodic table.
An atom is made of three particles:
- Protons
- Neutrons
- Electrons
Example is sodium atom, hydrogen atom, e.t.c
Chemical formula:
It is simply a combination of symbols used to depict group of atoms that have come together to form compounds, molecules and sometime mixtures.
Formula's are alpha-numeric in nature. The number shows the number of atoms in the formula.
For example H₂O is the formula of water
Chemical reaction:
It is a process that involves the re-arrangement of atoms through the exchange of electrons between different species.
A chemical reaction is made up of:
- Reactants on the left hand side.
- Products on the right hand side.
2H₂ + O₂ → 2H₂O
Learn more:
Chemical reaction brainly.com/question/3953793
#learnwithBrainly
Atoms in the same group (column) of the periodic table have similar properties. This is because all elements in the same group have the same amount of valence (outer) electrons.
So, any element directly above or below Calcium on the periodic table would have similar properties.
These would be Magnesium, Barium, Strontium, Radium, and Beryllium.
Answer: 1.5% w/v
Solution: (60mL)(2%) = (80mL)(x)
X = 1.5%