Answer:- Volume of the gas in the flask after the reaction is 156.0 L.
Solution:- The balanced equation for the combustion of ethane is:
From the balanced equation, ethane and oxygen react in 2:7 mol ratio or 2:7 volume ratio as we are assuming ideal behavior.
Let's see if any one of them is limiting by calculating the required volume of one for the other. Let's say we calculate required volume of oxygen for given 36.0 L of ethane as:
= 126 L 
126 L of oxygen are required to react completely with 36.0 L of ethane but only 105.0 L of oxygen are available, It means oxygen is limiting reactant.
let's calculate the volumes of each product gas formed for 105.0 L of oxygen as:
= 60.0 L 
Similarly, let's calculate the volume of water vapors formed:
= 90.0 L 
Since ethane is present in excess, the remaining volume of it would also be present in the flask.
Let's first calculate how many liters of it were used to react with 105.0 L of oxygen and then subtract them from given volume of ethane to know it's remaining volume:
= 30.0 L 
Excess volume of ethane = 36.0 L - 30.0 L = 6.0 L
Total volume of gas in the flask after reaction = 6.0 L + 60.0 L + 90.0 L = 156.0 L
Hence. the answer is 156.0 L.
Answer:
Tend. Similar. Parents. (sorry if it's wrong. It's kinda confusing on the last 2 words. Make it more clearer pls to get a better answer)
Explanation:
This is an exception to the general electronegativity trend. It can be explained by looking at the electron configurations of both elements.
<span>Be:[He]2<span>s2
</span></span><span>B:[He]2<span>s2</span>2<span>p1
</span></span>
When you remove an electron from beryllium, you are taking away an electron from the 2s orbital. When you remove an electron from boron, you are taking an electron from the 2p orbital. The 2p electrons have more energy than the 2s, so it is easier to remove them as they can more strongly resist the effective nuclear charge of the nucleus.
If you have a increased number of rod cells
<span />
Answer:
See the answer below
Explanation:
<em>The information than can be inferred from knowing the pH value of a chemical solution is the </em><em>hydrogen</em><em> or </em><em>hydroxyl ion concentration</em><em> of the solution.</em>
The pH of a solution is the degree of acidity or alkalinity of the solution. Mathematically, the pH of a solution is expressed as:
pH = ![-log_{10}[H^+]](https://tex.z-dn.net/?f=-log_%7B10%7D%5BH%5E%2B%5D)
where ![[H^+]](https://tex.z-dn.net/?f=%5BH%5E%2B%5D)
= hydrogen ion concentration.
Also,
pH = 14 - pOH, where pOH = ![-log_{10}[OH^-]](https://tex.z-dn.net/?f=-log_%7B10%7D%5BOH%5E-%5D)
<em>The more the </em><em> of a solution, the lower the pH, and the more the </em>![[OH^-]](https://tex.z-dn.net/?f=%5BOH%5E-%5D)
<em> of a solution the higher the pH. The pH value ranges from 0 - 14 with 7 being a neutral pH.</em>
<u />
