Ionic, think about the way metals share electrons with other metals, resulting in malleability.
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Answer:
4.48 - 6.48
Explanation:
A pH indicator works in a better way in a range of pH = pKa ± 1. That means we need to determine the pKa of the indicator propyl red to find the range over which it change its color. That is:
pKa = -log Ka
pKa = -log 3.3x10⁻⁶
pKa = 5.48
That means the range over propyl red will change from yellow to red or vice versa is:
4.48 - 6.48
The solvent in a solution generally is the substance with the highest concentration.
So, in this case is should be the substance D which makes up 70%.
Answer: option A. substance D.
Around 0.304347826086957 so .3mol
