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3 years ago

What visible evidence indicates that a solution is saturated?

2 answers:

7 0

If clusters of the solute is still visible after the solution is stirred completely, this is evidence towards 'Over-Saturation'. <span />

AVprozaik [17]3 years ago

5 0

The greatest visual evidence you can use when trying to determine if a solution is saturated is to look and see if everything in the test tube is a single color and a single consistency.

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If 120.3 mL of water is shaken with oxygen gas at 2.1 atm, it will dissolve 0.0043 g O2. Estimate the Henry's law constant for t

nikklg [1K]

<u>Answer:</u> The Henry's law constant for oxygen gas in water is $1.702\times 10^{-5}g/mL.atm$

<u>Explanation:</u>

To calculate the molar solubility, we use the equation given by Henry's law, which is:

$C_{O_2}=K_H\times p_{O_2}$

where,

$K_H$ = Henry's constant = ?

$C_{O_2}$ = solubility of oxygen gas = $0.0043g/120.3mL$

$p_{O_2$ = partial pressure of oxygen gas = 2.1 atm

Putting values in above equation, we get:

$0.0043g/120.3mL=K_H\times 2.1atm\\\\K_H=\frac{0.0043g}{120.3mL\times 2.1atm}=1.702\times 10^{-5}g/mL.atm$

Hence, the Henry's law constant for oxygen gas in water is $1.702\times 10^{-5}g/mL.atm$

7 0

3 years ago

The noble gases are inert due to the fact that A. their valence shell is empty B. their valence shell is full C. their electrons

coldgirl [10]

Answer:

B) Their valence shell is full

Explanation:

In order to be classified as a noble gas, an element must have a complete octet/ a full shell of valence electrons, as shown in answer B.

A and C are just incorrect. Since noble gasses are very unstable, D is a true statement, but is isn't the correct answer as this does not explain why they are inert.

<h3>Hope this was helpful!</h3>

5 0

3 years ago

Yo _____ con mi amigo hablo,hable,hablaba,hablabo

marta [7]

Answer:

hablabo

Explanation:

8 0

3 years ago

The animal kingdom is large and diverse. Scientists discover new species all the time, and they need a way to classify them. The

tatiyna

The answer is D, because "Animals without a backbone are invertebrates."

4 0

4 years ago

What era is know as the age of mammals?

kondaur [170]

The <span>era that is know as the age of mammals is the </span><span>Mesozoic period.

Answer: Letter D

Hope that helps. -UF aka Nadoa</span>

7 0

3 years ago