Explain the trend as you move across a row of the periodic table for each of the following atomic
1 answer:
Answer(s):
a) atomic radius decreases when moving across a period and increased when going down a group.
b) ionization energy increases when moving from left to right across and element period.
Vocab explanations:
groups: The columns of the periodic table are called groups.
periods: The horizontal rows are called periods.
a) atomic radius decreases when moving across a period and increased when going down a group.
b) ionization energy increases when moving from left to right across and element period.
Vocab explanations:
groups: The columns of the periodic table are called groups.
periods: The horizontal rows are called periods.
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Answer:
Explanation:
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In this case, since the acid is monoprotic and the KOH has one hydroxyl ion only, we can see that at the equivalence point the moles of both of them are the same:
Thus, since we are given 1.70 g of the acid, we compute the moles of acid that were titrated:
Which equal the moles of KOH. In such a way, since the molarity is defined as moles over liters (M=n/V), the liters are moles over molarity (V=n/M), thus, the resulting volume is:
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