The answer to this question would be: <span>lif
</span>percent ionic character is used to determine if a bond is more ionic or covalent. The more percent ionic character, the more ionic the molecule is. If the e<span>lectronegativity difference(delta E.N.) between two elements is higher than 1.7 it will be considered more ionic than covalent.</span>
<span>
If you count the delta E.N. of those molecules the number should be 1.9 for HF, 0.9 for HCl, 0.7 for HBr, and 3.0 for LiF.
In this case, lif would be the one with highest percent ionic character. </span>
Answer:
pickles are ligit good
Explanation:
i like pickles but not his
Answer:
B. land takes longer than water to heat up and cool down
Explanation:
Answer:
![pH=4.56](https://tex.z-dn.net/?f=pH%3D4.56)
Explanation:
Hello there!
In this case, given the Henderson-Hasselbach equation, it is possible for us to compute the pH by firstly computing the concentration of the acid and the conjugate base; for this purpose we assume that the volume of the total solution is 0.025 L and the molar mass of the sodium base is 234 - 1 + 23 = 256 g/mol as one H is replaced by the Na:
![n_{acid}=\frac{0.2g}{234g/mol}=0.000855mol\\\\n_{base}= \frac{0.2g}{256g/mol}=0.000781mol](https://tex.z-dn.net/?f=n_%7Bacid%7D%3D%5Cfrac%7B0.2g%7D%7B234g%2Fmol%7D%3D0.000855mol%5C%5C%5C%5Cn_%7Bbase%7D%3D%20%5Cfrac%7B0.2g%7D%7B256g%2Fmol%7D%3D0.000781mol)
And the concentrations are:
![[acid]=0.000855mol/0.025L=0.0342M](https://tex.z-dn.net/?f=%5Bacid%5D%3D0.000855mol%2F0.025L%3D0.0342M)
![[base]=0.000781mol/0.025L=0.0312M](https://tex.z-dn.net/?f=%5Bbase%5D%3D0.000781mol%2F0.025L%3D0.0312M)
Then, considering that the Ka of this acid is 2.5x10⁻⁵, we obtain for the pH:
![pH=-log(2.5x10^{-5})+log(\frac{0.0312M}{0.0342M} )\\\\pH=4.60-0.04\\\\pH=4.56](https://tex.z-dn.net/?f=pH%3D-log%282.5x10%5E%7B-5%7D%29%2Blog%28%5Cfrac%7B0.0312M%7D%7B0.0342M%7D%20%29%5C%5C%5C%5CpH%3D4.60-0.04%5C%5C%5C%5CpH%3D4.56)
Best regards!
There are several types of renewable resources that can be used in our home. Solar power, wind power, water power to name a few. The most reliable would most likely be water, since the winds don't always blow and the sun doesn't always shine, but water always flows.