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3 years ago

14

The mass of an object is described in what??

1 answer:

inessss [21]3 years ago

6 0

<span>The mass of an object is measured in either grams or kilograms. Mass is best described as the amount of matter, or "stuff," in a solid, and is different from weight (which is the force of gravity on an object). Since mass is used with solids, it will be measured in grams or kilograms (rather than in something like liters, which would be used with the volume of a liquid). To measure mass, you can use a balance, for example a triple balance beam.</span>

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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

2 years ago

Plz answer ASAP

strojnjashka [21]

Answer:

this should help *not a virus

Explanation:

https://kidshealth.org/en/teens/digestive-system.html

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2 years ago

Which of the following is chemically inert ( unreactive)?

IrinaK [193]

(C) neon (atomic number 10)

Explanation:

The atom that is chemically inert is Neon with an atomic number of 10.

An atom is chemically inert if it does not willingly take part in chemical reaction.

Atoms takes part in chemical reactions in order to attain a stable configuration as seen in the noble gases.

In the noble gases every enable level is completely filled with the appropriate number of electrons.

The noble gases are He, Ne, Ar, Kr, Xe
These elements do not react with others.
From the given option, Neon is a noble gas and therefore inert.

learn more:

Noble gas brainly.com/question/1781595

#learnwithBrainly

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3 years ago

Tiny sacs in the lungs where gas exchange takes place are called ____?

SSSSS [86.1K]

Answer:

Alveoli

Explanation:

I hope this helps you.

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Anthony's homework assignment is to demonstrate that an orange has already undergone a chemical change. Which of the following

wolverine [178]

B. Rotten orange is the correct answer. Hope this helps!

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3 years ago

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