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2 years ago

Need help on this please help

Chemistry

2 answers:

nordsb [41]2 years ago

8 0

I think the tilt of earth and its orbit around the sun

lana66690 [7]2 years ago

4 0

Answer:

It's because the Earth is tilted on it's axis. So the second answer.

I hope that helps :)

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What is common among all three types of forests in the Venn diagram?

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3 years ago

Explain why a luminous flame of a Bunsen burner produces bright yellow light

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12. Photosynthesis builds sugars out of small molecules, making it an

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2 years ago

A 0.100 M solution of bromoacetic acid (BrCH2COOH) is 13.2% ionized. Calculate [H+]? Calculate BrCH2COO^ - ? Calculate BrCH2COOH

Natali [406]

<u>Answer:</u> The concentration of hydrogen ion and bromoacetate ion is 0.0132 M and 0.0132 M resepectively and that of bromoacetic acid is 0.0868 M

<u>Explanation:</u>

We are given:

Molarity of bromoacetic acid = 0.100 M

Percent of ionization = 13.2 %

The chemical equation for the ionization of bromoacetic acid follows:

$BrCH_2COOH\rightarrow BrCH_2COO^-+H^+$

1 mole of bromoacetic acid produces 1 mole of bromoacetate ion and 1 mole of hydrogen ion

Molarity of hydrogen ion = 13.2 % of 0.100 = $\frac{13.2}{100}\times 0.100=0.0132M$

Molarity of bromoacetate ion = molarity of hydrogen ion = 0.0132 M

Molarity of bromoacetic acid = Molarity of solution - Molarity of ionized substance

Molarity of bromoacetic acid = 0.100 - 0.0132 = 0.0868 M

Hence, the concentration of hydrogen ion and bromoacetate ion is 0.0132 M and 0.0132 M resepectively and that of bromoacetic acid is 0.0868 M

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2 years ago

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happy Mother's day

Explanation:

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2 years ago