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>
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Answer:
Explanation:
4Li + O₂ = 2Li₂O.
4 mole 1 mole
3.25 g Li = 3.25 / 7
= .464 moles
3.5 g of O₂ = 3.5 / 32 mole
= .11 mole
.11 mole of O₂ will react with .44 mole of Li as per the equation above
but Li available is .464 which is in excess .
Hence O₂ is in short supply for given mass of Li .
Hence O₂ is the limiting reagent .
Answer:
With the changes in atmospheric pressure, the gas laws also change accordingly, that is, the Charle's law, the Boyle's law, the Ideal Gas Law, and the Gay-Lussac's law changes with the change in atmospheric pressure. Therefore, the planets, which exhibits the constant value of atmospheric pressure will be more reliable, and those possessing different atmosphere or no atmosphere will be the least reliable.
