Answer:
27·92 %
Explanation:
Given chemical equation is
2C4H10 + 13O2 -----> 8CO2 + 10H2O
So according to the above balanced chemical equation for 2 moles of C4H10, 10 moles of water is produced
Molecular weight of C4H10 is 58 g
Molecular weight of water is 18 g
So for 116 g of C4H10, 180 g of water is produced and therefore for 1 g of C4H10 (180 ÷ 116) g of water is produced
∴ For 1 g of C4H10 1·552 g of water is produced
For 3000 g of C4H10, (3000 × 1·552) g of water is produced
∴ Number of grams of water produced for 3000 g of C4H10 is 4656 g
Percent yield =((experimental amount) ÷ (theoretical amount)) × 100
Here experimental amount is 4656 g
theoretical amount is 1300 g
∴ Percent yield = (1300 ÷ 4656) × 100 = 27·92 %
∴ Percent yield = 27·92 %
Answer:
2522g
Explanation:
8Fe + S8 —> 8FeS
From the question,
8moles of Fe required 1mole of S8.
Therefore, Xmol of Fe will require 5.65mol of S8 i.e
Xmol of Fe = 8 x 5.65 = 45.2moles
Now we need to covert 45.2moles to gram. This is illustrated below below:
Molar Mass of Fe = 55.8g/mol
Number of mole of Fe = 45.2moles
Mass of Fe =?
Mass = number of mole x molar Mass
Mass of Fe = 45.2 x 55.8
Mass of Fe = 2522g
Therefore, 2522g of Fe is needed for the reaction.
The medium through which a wave travels depends on the type of wave. Mechanical waves require a physical substance for propagation, while electromagnetic waves can travel through both material mediums and empty space due to their unique field-based nature.
The medium through which a wave travels is the substance or material that carries the energy of the wave from one place to another. Waves can propagate through a variety of mediums, and the nature of the medium has a significant impact on the characteristics of the wave.
In mechanical waves, such as sound waves and seismic waves, the medium is typically a material like air, water, or solid objects. In the case of sound waves, air molecules vibrate as the wave passes through, transmitting compressions and rarefactions that our ears perceive as sound. In seismic waves, the Earth's crust and mantle serve as the medium, with rocks transmitting the wave energy.
Electromagnetic waves, like light and radio waves, do not require a physical medium to travel through. They can propagate through a vacuum, such as space, as well as through materials like air, water, and glass. This is because electromagnetic waves consist of oscillating electric and magnetic fields that can interact with charged particles in matter or propagate freely through the vacuum of space.
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