From the molarity and volume of HClO4, we can determine how many moles of H+ we initially have:
0.18 M HClO4 * 0.100 L HClO4 = 0.018 moles H+
We can determine how many moles of OH- we have from the molarity and volume of LiOH:
0.27 M LiOH * 0.030 L LiOH = 0.0081 moles OH-
When the HClO4 and LiOH neutralize each other, the remaining will be
0.018 moles H+ - 0.0081 moles OH- = 0.0099 moles of excess H+
This means that the molarity [H+] will be
[H+] = 0.0099 moles H+ / (0.100 L + 0.030 L) = 0.07615 M
The pH of the solution will therefore be
pH = -log [H+] = -log 0.07615 = 1.12
Its a)the no. of products are greater than the no. of reactants
Answer:
(upper right) corner of the periodic table to the bottom left corner
It is false that if a question is asking about an opinion, it can be answered with science.
<h3>What is opinion?</h3>
A personal belief or assumed that is not tested or backed up by evidence is described as an opinion.
A hypothesis is typically a claim based on some form of observation or evidence. Hypotheses must be testable and, once tested, evidence-supported.
Any question that is based on opinion cannot be answered by scientific reasonings as it is not evidence based.
Thus, the given statement is false.
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