Which characteristic would you predict from a solution that has a pH of 5?
2 answers:
Answer : The correct option is, sour taste
Explanation :
Acid : It is a substance that has ability of donating proton or hydrogen ion or hydronium ion, .
The properties of an acid are :
- Acids are sour in taste.
- The texture of an acid solution is sticky.
- It changes the color of the litmus paper to red.
- It react with a metal to give compound and hydrogen gas.
- The pH of an acid is less than 7.
Base : It is a substance that has ability of donating hydroxide ion, .
The properties of an base are :
- Base are bitter in taste.
- The texture of an base solution is slippery.
- It changes the color of the litmus paper to blue.
- It does not react with a metal.
- The pH of a base is more than 7.
As per question, the pH is 5 that means the solution is acidic in nature and follow the properties of an acid. So, the pH = 5 has the sour taste characteristic. While the other options are the properties of a base.
Hence, the correct option is, sour taste
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Answer:
10 molecules of NH₃.
Explanation:
N₂ + 3H₂ --> 2NH₃
As the N₂ supply is unlimited, what we need to do to solve this problem is <u>convert molecules of H₂ into molecules of NH₃</u>. To do so we use the <em>stoichiometric coefficients</em> of the balanced reaction:
- 15 molecules H₂ *
= 10 molecules NH₃
10 NH₃ molecules could be prepared from 15 molecules of H₂ and unlimited N₂.