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stiks02 [169]
3 years ago
8

What are the products of a combustion reaction

Chemistry
2 answers:
zepelin [54]3 years ago
5 0
Hope this helped you :)
Gekata [30.6K]3 years ago
5 0

Answer:

Heat

Explanation:

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2 years ago
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3 years ago
A solution is prepared by diluting 43.5 mL of 6.5×10?2M Ba(OH)2 to a volume of 270.5 mL .
salantis [7]

Answer:

The pH of the solution is 12.31 .

Explanation:

Initial molarity of barium hydroxide =M_1=6.5\times 10^{-2}M

Initial volume of barium hydroxide =V_1=43.5 mL

Final molarity of barium hydroxide =M_2

Final volume of barium hydroxide =V_2=270.5 mL

M_1V_1=M_2V_2

M_2=\frac{6.5\times 10^{-2}M\times 43.5 mL}{270.5 mL}

M_2=0.0104 M

Ba(OH)_2\rightarrow Ba^{2+}+2OH^-

1 mol of barium gives 2 mol of hydroxide ions.

Then 0.0104 M of barium hydroxide will give:

2\times 0.0104 M=0.0208 M of hydroxide ions

[OH^-]=0.0208 M

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pH=14-(-\log[0.0208 M])=12.31

The pH of the solution is 12.31 .

4 0
3 years ago
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