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3 years ago

Explain how changing the amount of greenhouse gases in the atmosphere affects the flow of heat out of Earth's atmosphere.

Chemistry

1 answer:

antiseptic1488 [7]3 years ago

8 0

Explanation:

The added greenhouse gases absorb the heat. They then radiate this heat. Some of the heat will head away from the Earth, some of it will be absorbed by another greenhouse gas molecule, and some of it will wind up back at the planet's surface again. With more greenhouse gases, heat will stick around, warming the planet.

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formic acid buffer containing 0.50 M HCOOH and 0.50 M HCOONa has a pH of 3.77. What will the pH be after 0.010 mol of NaOH has b

HACTEHA [7]

Answer:

pH = 3.95

Explanation:

It is possible to calculate the pH of a buffer using H-H equation.

pH = pka + log₁₀ [HCOONa] / [HCOOH]

If concentration of [HCOONa] = [HCOOH] = 0.50M and pH = 3.77:

3.77 = pka + log₁₀ [0.50] / [0.50]

3.77 = pka

Knowing pKa, the NaOH reacts with HCOOH, thus:

HCOOH + NaOH → HCOONa + H₂O

That means the NaOH you add reacts with HCOOH producing more HCOONa.

Initial moles of 100.0mL = 0.1000L:

[HCOOH] = (0.50mol / L) ₓ 0.1000L = 0.0500moles HCOOH

[HCOONa] = (0.50mol / L) ₓ 0.1000L = 0.0500moles HCOONa

After the reaction, moles of each species is:

0.0500moles HCOOH - 0.010 moles NaOH (Moles added of NaOH) = 0.0400 moles HCOOH

0.0500moles HCOONa + 0.010 moles NaOH (Moles added of NaOH) = 0.0600 moles HCOONa

With these moles of the buffer, you can calculate pH:

pH = 3.77 + log₁₀ [0.0600] / [0.0400]

3 0

3 years ago

The model below shows an atom of an element. 9 light grey and 8 dark grey balls sit at the center with 2 concentric black rings

aleksley [76]

Answer:

sorry if this is a bit late but i know what your talking about and your answer would be 8

stay happy!!

3 0

4 years ago

Read 2 more answers

When two fluorine atoms bond together in F2, what type of covalent bond do they form?

makvit [3.9K]

When two fluorine atoms bond together in f2 the type of covalent bond do they form is non-polar covalent bond.

Explanation

They are two type of covalent bond. that is non polar covalent bond and polar covalent bond.

Non polar covalent bond is formed when atoms share a pair of electrons with each other equally.

polar covalent bond is bond formed when atoms share a pair electrons unequally.

F2 is a non polar since it is made up of two same atoms which has the same electronegativity, therefore equal number of electrons exist in the orbital overlap.

4 0

3 years ago

Read 2 more answers

When a baseball bat hits a baseball, what happens to the energy? completo ancur

professor190 [17]

Answer: the baseball bat transfor its energy in the ball.

Explanation: you hit it with one and find out and tell me what you think what happen.

3 0

3 years ago

The half life of carbon is 5,730 years. What fraction of the original 14/6 C would be in a wooden axe handle that was 17,190 yea

Mariana [72]

Answer: