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Shtirlitz [24]
3 years ago
15

Please help with chemistry work

Chemistry
1 answer:
Andrei [34K]3 years ago
5 0

Answer:

Explanation:

14:

a) Shared pairs = 6

per shared pair between each C-H bond.

and two shared pair between C=C thus total shared pairs are 6

a) Lone pairs = 0

b) Single bonds = 4

Double bonds = 1

Triple bonds = 0

c) Formula = C₂H₄

Name = Ethene

d) Lewis structure =  given structure is also Lewis structure.

13:

a) Shared pairs = 3

a) Lone pairs = 2

b) Single bonds = 0

Double bonds = 0

Triple bonds = 1

c) Formula = N₂

Name = Dinitrogen

d) Lewis structure = given structure is also Lewis structure.

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Calculate the pH during the titration of 30.00 mL of 0.1000 M HCOOH(aq) with 0.1000 M NaOH(aq) after 29.3 mL of the base have be
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Answer:

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Explanation:

<em>Herein, the no. of millimoles of the acid (HCOOH) is more than that of the base (NaOH).</em>

<em />

So, <em>concentration of excess acid = [(NV)acid - (NV)base]/V total</em> = [(30.0 mL)(0.1 M) - (29.3 mL)(0.1 M)]/(59.3 mL) = <em>1.18 x 10⁻³ M.</em>

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