Answer:
177.3kg C₂₁H₄₄
Explanation:
Based on the chemical reaction:
C₂₁H₄₄ → 3C₂H₄ + C₁₅H₃₂
<em>Where 1 mole of C₂₁H₄₄ produce 3 moles of ethene, C₂H₄.</em>
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To solve this question we need to determine the moles of ethene in 50.4kg. 1/3 these moles are the moles of C₂₁H₄₄ that must be added:
<em>Moles Ethene -Molar mass: 28.05g/mol-</em>
50.4kg = 50400g * (1mol / 28.05g) = 1796.8 moles of ethene
<em>Moles C₂₁H₄₄:</em>
1796.8 moles of ethene * (1 mol C₂₁H₄₄ / 3 mol C₂H₄) = 589.93 moles C₂₁H₄₄
<em>Mass C₂₁H₄₄:</em>
589.93 moles C₂₁H₄₄ * (296g / mol) = 177283g =
<h3>177.3kg C₂₁H₄₄</h3>
<h3>
Answer:</h3>
H₂O
<h3>
Explanation:</h3>
The additional product that balances the reaction is water (H₂O).
- Therefore, the complete balanced equation for the reaction is;
H₂SO₄(aq) + 2NaOH(aq) → Na₂SO₄(aq) + H₂O(l)
- Balancing a chemical equation ensures that the law of conservation of mass is obeyed by the reaction.
- The reaction is an example of a neutralization reaction where an acid, H₂SO₄, reacts with a base, NaOH to form a salt and water.
- In this case the salt formed is sodium sulfate (Na₂SO₄)
When you consume proteins, carbs, and fats they are chemically changed into energy.
The second choice: physical change <span>because even though gas formation was observed, the water was undergoing a state change, which means that its original properties are preserved</span>
The factors to be kept constant in the experiment are:
- temperature
- volume of ice
- pressure.
The greater the quantity of salt added, the faster the rate of the melting of ice.
<h3>How does the quantity of salt added affect the rate at which ice will melt?</h3>
The melting of ice when salt is added is due to the lowering of the melting point of ice by the salt.
The rate of the reaction is directly proportional to the concentration or amount of salt added.
Therefore, the greater the quantity of salt added, the faster the rate of the melting of ice.
The factors to be kept constant are:
- temperature
- volume of ice
- pressure.
In conclusion, the rate of melting of ice increases with increase n the quantity of salt added.
Learn more about salt and melting of ice at: brainly.com/question/17118985
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