Ask question

Ask question

All categories

3 years ago

5

When nitrogen is removed from a sample of air by the process of nitrogen fixation, what happens to the total pressure of the sam

ple?
a. It increases.
b. It stays the same.
c. It decreases.

1 answer:

Komok [63]3 years ago

8 0

The correct answer is "C. It Decreases".

You might be interested in

Which structure is part of the central nervous system?

Oxana [17]

The spinal cord is part of the central nervous system

4 0

3 years ago

Compare the volume of 14.1 g of helium to 14.1 g of argon gas (under identical conditions).

s2008m [1.1K]

The Volumes can be calculated from Masses by using following Formula,

Density = Mass / Volume
Solving for Volume,
Volume = Mass / Density

Mass of Both Gases = 14.1 g

Density of Argon at S.T.P = 1.784 g/L

Density of Helium at S.T.P = 0.179 g/L

For Argon:
Volume = 14.1 g / 1.784 g/L

Volume = 7.90 L

For Helium:
Volume = 14.1 g / 0.179 g/L

Volume = 78.77 L

4 0

3 years ago

A sample of gas occupies 0.04 L at 150 K. What volume does that sample occupy at 300 K?

Natalka [10]

C.
hope this helps :)

8 0

3 years ago

Calculate the OH− concentration after 53 mL of the 0.100 M KOH has been added to 25.0 mL of 0.200 M HBr. Assume additive vol- um

Andre45 [30]

Answer:

$\large \boxed{\text{0.0038 mol/L}}$

Explanation:

1. Calculate the initial moles of acid and base

$\text{moles of acid} = \text{0.0250 L} \times \dfrac{\text{0.200 mol}}{\text{1 L}} = \text{0.005 00 mol}\\\\\text{moles of base} = \text{0.053 L} \times \dfrac{\text{0.100 mol}}{\text{1 L}} = \text{0.0053 mol}$

2. Calculate the moles remaining after the reaction

OH⁻ + H₃O⁺ ⟶ 2H₂O

I/mol: 0.0053 0.005 00

C/mol: -0.00500 -0.005 00

E/mol: 0.0003 0

We have an excess of 0.0003 mol of base.

3. Calculate the concentration of OH⁻

Total volume = 53 mL + 25.0 mL = 78 mL = 0.078 L

$\text{[OH}^{-}] = \dfrac{\text{0.0003 mol}}{\text{0.078 L}} = \textbf{0.0038 mol/L}\\\\\text{The final concentration of OH$^{-}$ is $\large \boxed{\textbf{0.0038 mol/L}}$}$

8 0

3 years ago

What is simple displacement reaction???give examples.

VARVARA [1.3K]

Answer:

<h2>Hey rose why you deleted my comments</h2>

3 0

3 years ago