Answer:
A) The shared electrons in C-O bonds spend less time close to the carbon nucleus than the shared electrons in C-H bonds.
Explanation:
The electronegativity from H is 2.2, from C is 2.55 and from O is 3.44. This property is the measure of the attractive force between an atom and a pair of electrons.
So, the difference of electronegativity of H and C is smaller than the difference between O and C. Because oxygen is more electronegative, the electrons stay close to it in the bond C=O. So carbon has a partial positive charge in that bond. For the bond C-H, the shared electrons stay closes to carbon.
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Answer:
Mass of each weight = 56.7 gram per piece
Explanation:
Given:
Lead’s density = 11.34 g/mL
Number of weights = 50
Volume of box = 250 mL
Find:
Mass of each weight
Computation:
Mass = volume x density
Mass = 250 x 11.34
Mass = 2,835 gram
Mass of each weight = Total Mass / Number of weights
Mass of each weight = 2,835 / 50
Mass of each weight = 56.7 gram per piece
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Answer:
Explanation:
Hello,
In this case, for the dissociation of the sodium hydroxide into sodium and hydroxyl ions we have:
Which is a 100% dissociation as sodium hydroxide is a strong base, therefore, the concentration of the hydroxyl ions are 1.0x10⁻⁹. For that reason, the pOH could be computed as:
Finally, from the definition of pH, we have:
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