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ICE Princess25 [194]
3 years ago
9

Activity In this activity, you’ll draw and count atoms to understand how nitrogen and hydrogen react to make ammonia. Begin by s

tudying this chemical equation: N2 + 3H2 → 2NH3. Then answer the following questions. Part A Question Draw the reactants using the drawing tool. Keep in mind that one molecule of nitrogen has two bonded atoms, and one molecule of hydrogen has two bonded atoms.
Chemistry
1 answer:
vredina [299]3 years ago
3 0

Answer:

Explanation:

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How do protons in the nucleus behave?
IRISSAK [1]

Answer:

Protons and neutrons are made up of smaller subatomic particles. When protons or neutrons get close enough to each other, they exchange particles (mesons), binding them together. Once they are bound, it takes considerable energy to break them apart.

7 0
3 years ago
RISD-QSA-SCI-CHEM-Units 7-12 Question: 1-1
ra1l [238]

Answer:

0.02.55M

Explanation:

Concentration = moles/ volume(L)

10mL= 0.01L

Concentration (M)= 0.0255 mol / 0.01L

Concentration (M)= 0..255M

8 0
3 years ago
What is the pH of a buffer solution that contains 0.55 M methylamine, CH 3NH2, and 0.29 M methylammonium chloride, CH3NH3Cl?A
Alex

Answer:

pH = 10.93

Explanation:

To find the pH we need to use the Henderson - Hasselbalch equation:

pH = pKa + log(\frac{[A^{-}]}{[HA]})

<u>Where</u>:

[A⁻]: is the conjugate base of the acid = [CH₃NH₂] = 0.55 M

[HA]: is the acid = [CH₃NH₃Cl] = 0.29 M

Since the pkb of methylamine is 3.35, the pka is:

pk_{a} + pk_{b} = 14

pk_{a} = 14 - pk_{b} = 14 - 3.35 = 10.65  

Now, the pH is:

pH = pKa + log(\frac{[A^{-}]}{[HA]}) = 10.65 + log(\frac{0.55}{0.29}) = 10.93

Therefore, the pH of the buffer solution is 10.93.

I hope it helps you!      

6 0
4 years ago
What element has 16 electrons, 16 protons, and 16 neutrons
12345 [234]

Answer:

The element that has 16 electrons, 16 protons, and 16 neutrons is sulfur (S)

Explanation:

The atomic number tell you the number of protons.

The atomic configuration tell you the number of electrons.

The mass number minus the protons tell you the number of neutrons.

5 0
3 years ago
Calculating pH
saveliy_v [14]

Answer:

The answer to your question is given below

Explanation:

1. Data obtained from the question include:

Hydrogen ion concentration, [H+] = 1x10^-9M

pH =..?

pH = - log [H+]

pH = - log 1x10^-9

pH = 9

2. Data obtained from the question include:

pOH = 3

pH =.?

Recall:

pH + pOH = 14

pH + 3 = 14

Collect like terms

pH = 14 - 3

pH = 11

3. Data obtained from the question include:

Hydroxide ion concentration, [OH-] = 1x10^-2M

pH =..?

First, we shall determine the pOH. This is illustrated below

pOH = - Log [OH-]

pOH = - Log 1x10^-2

pOH = 2

Finally, we can obtain the pH as follow:

pH + pOH = 14

pOH = 2

pH + 2 = 14

Collect like terms

pH = 14 - 2

pH = 12

4. Data obtained from the question include:

pOH = 7

pH =.?

Recall:

pH + pOH = 14

pH + 7 = 14

Collect like terms

pH = 14 - 7

pH = 7

3 0
3 years ago
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