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AysviL [449]
4 years ago
12

How much has CO2 in the atmosphere increased since the Industrial Revolution?

Chemistry
1 answer:
leva [86]4 years ago
8 0

Answer:

The concentration of carbon dioxide in the atmosphere has increased more in the northern hemisphere where more fossil fuel burning occurs. Since the Industrial Revolution the concentration globally has increased by about 40 % .

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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
pashok25 [27]

Answer:

3.336.

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>

<em></em>

<em> For weak acids; [H⁺] = √Ka.C</em> = √(1.8 x 10⁻⁴)(1.18 x 10⁻³ M) = <em>4.61 x 10⁻⁴ M.</em>

∵ pH = - log[H⁺].

<em>∴ pH = - log(4.61 x 10⁻⁴) = 3.336.</em>

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4 years ago
If temperature is increased, the number of<br> collisions per second
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If the temperature is increased, the average speed and kinetic energy of the gas molecules increase.

Explanation:

4 0
3 years ago
(THIS QUESTION IS FROM APEX IN COURSE: Physical Science Sem 2)
a_sh-v [17]
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6 0
4 years ago
Which particles are found in the nucleus of an argon atom
LuckyWell [14K]

Answer:

) protons and electrons (2) protons and neutrons (3) protons and neutrons (4) positrons and electrons

Explanation:

Hopes this helps

7 0
3 years ago
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5.6 atm

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