Use the periodic table to identify each of the following bonds as polar or nonpolar.
1 answer:
Answer:
Polar
Step-by-step explanation:
Electronegativity increases from <em>left to right</em> in the Periodic Table.
Cl is further right than C (both tinted pink) in the portion of the Periodic Table below.
Cl is <em>more electronegative</em> than C, so the Cl has a partial negative charge and the C has a partial positive charge.
The C-Cl bond is polar.
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Answer:
A) pH = 2.8
B) pH = 5.5
C) pH = 8.9
D) pH = 13.72
Explanation:
a) [H⁺] = 1.6 × 10⁻³ M
pH = -log [H⁺]
pH = -log [1.6 × 10⁻³ ]
pH = 2.8
b) [H⁺] = 3 × 10⁻⁶
pH = -log [H⁺]
pH = -log [3 × 10⁻⁶ ]
pH = 5.5
c) [OH⁻] = 8.2 × 10⁻⁶
pOH = -log[OH]
pOH = -log[8.2 × 10⁻⁶]
pOH = 5.1
pH + pOH = 14
pH = 14 - pOH
pH = 14 - 5.1
pH = 8.9
d) [OH⁻] = 0.53 M
pOH = -log[OH]
pOH = -log[0.53]
pOH = 0.28
pH + pOH = 14
pH = 14 - pOH
pH = 14 - 0.28
pH = 13.72
The following will ensure laboratory safety during an experiment;
1) Using tongs to handle a hot beaker: This prevents direct contact with the hot beaker and avoids burns
5) Turning off the hot plate after use: If the hot plate is left on, it could injure anyone who might touch it accidentally
