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gulaghasi [49]
2 years ago
13

Which of the following is the correct rank order of the diffusion rates of either Cl2 or H2S through air at a pressure of 1.0 at

m?
Chemistry
1 answer:
Radda [10]2 years ago
3 0

Answer:

Cl2 at 250 K < Cl2 at 300 K < H2S at 250 K < H2S at 300 K.

Explanation:

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Molarity to percent by mass. Convert 1.672 mol/L MgCl2(aq) solution to percent by mass of MgCl2 in the solution. The solution de
nignag [31]

Answer:

\%m/m=14\%

Explanation:

Hello!

In this case, since the molarity of magnesium chloride (molar mass = 95.211 g/mol) is 1.672 mol/L and we know the density of the solution, we can first compute the concentration in g/L as shown below:

[MgCl_2]=1.672\frac{molMgCl_2}{L}*\frac{95.211gMgCl_2}{1molMgCl_2}=159.2\frac{gMgCl_2}{L}

Next, since the density of the solution is 1.137 g/mL, we can compute the concentration in g/g as shown below:

[MgCl_2]=159.2\frac{gMgCl_2}{L}*\frac{1L}{1000mL}*\frac{1mL}{1.137g}=0.14

Which is also the by-mass fraction and in percent it turns out:

\%m/m=0.14*100\%\\\\\%m/m=14\%

Best regards!

6 0
3 years ago
Hello! Id like if someone could tell me this answer, thank you so much!
DaniilM [7]

Answer:

Option D. ZnCl₂ and H₂

Explanation:

From the question given above, the following equation was obtained:

2HCl + Zn —> ZnCl₂ + H₂

Products =?

In a chemical equation, reactants are located on the left side while products are located on the right side i.e

Reactants —> Products

Now, considering the equation from the question i.e

2HCl + Zn —> ZnCl₂ + H₂

The products are ZnCl₂ and H₂ because from our discussion above, we said that products are only located on the right side of chemical equation.

Thus, option D gives the correct answer to the question.

4 0
2 years ago
which of the following would increase the loudness of a sound? increase tension increase wavelength increase amplitude
andriy [413]

Answer : The correct option is, increase amplitude.

Explanation :

Amplitude : It is a measure of the size of sound waves.

The loudness of sound is depend on the amplitude of the sound wave. That means the more the amplitude, the louder will be the sound and the less the amplitude, the low will be the sound.

The loudness of sound does not depend on the tension and wavelength.

Therefore, the correct answer is, increase amplitude.


5 0
3 years ago
Read 2 more answers
The carbon bond strengths of graphite and diamonds are identical. True or False
Elena-2011 [213]

Answer:

false :)

Explanation:

3 0
3 years ago
Read 2 more answers
Which of the following relationships is/are true for gases?
Murljashka [212]

Answer:

B

Explanation:

Trust me i just did this on study island hehe

7 0
2 years ago
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