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likoan [24]
2 years ago
7

Working with one sample at a time, add water to the glass one tablespoon at a time. Water should soak the sample from the bottom

up. Count the number of tablespoons of water it takes to bring the water level up to the top of the sample. Record the amount in the chart.
Calculate the porosity of each sample using this formula, and record the results in the table. “Total sample volume” is the amount of soil, sand, or pebbles in the sample. A half cup is equal to 8 tablespoons.
% porosity = (amount of water added to sample ÷ total sample volume) × 100 Water Added to Sample
% Porosity

Pebbles
Enter your results here:
Soil
Enter your results here:
Sand
Enter your results here:
Chemistry
2 answers:
Vedmedyk [2.9K]2 years ago
7 0

Answer:

This is confusing

but if you still need help, you can search it online

Explanation:

MariettaO [177]2 years ago
3 0
Soil, sand, and pebbles ?
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Cuales son los tubos especializados de los riñones que filtran los desecjos de la sangre​
IrinaVladis [17]

Answer:

Cada nefrona incluye un filtro, llamado glomérulo, y un túbulo. Las nefronas funcionan a través de un proceso de dos pasos: el glomérulo filtra la sangre y el túbulo devuelve las sustancias necesarias a la sangre y elimina los desechos.

Explanation:

7 0
3 years ago
In order for sodium to have 8 valence electrons it would need to either gain _____ electrons or lose _____ electron.
tensa zangetsu [6.8K]

Answer:

7

Explanation:

sodium has 1 valence electron because of its place on the periodic table. a trick to use is included in the picture below to find out how many valence electrons an element has. to get from 1 to 8 we add 7.

I hope this helps :))

5 0
2 years ago
Una sola dosis de etanol, C2 H5 OH, eleva el nivel intracelular de iones calcio. Los iones Ca2+ liberados por el etanol 0,10 M m
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Answer:

No se bro cual se la respuesta .......

Explanation:

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4 0
3 years ago
Solar panels are used to harness sunlight energy. How could solar panels be used in a house?
Oduvanchick [21]

Answer:

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3 0
3 years ago
Calculate the pOH of an aqueous solution of .0.073 M LiOH
Novosadov [1.4K]

Considering the definition of pOH and strong base, the pOH of the aqueous solution is 1.14

The pOH (or potential OH) is a measure of the basicity or alkalinity of a solution and indicates the concentration of ion hydroxide (OH-).

pOH is expressed as the logarithm of the concentration of OH⁻ ions, with the sign changed:

pOH= - log [OH⁻]

On the other hand, a strong base is that base that in an aqueous solution completely dissociates between the cation and OH-.

LiOH is a strong base, so the concentration of the hydroxide will be equal to the concentration of OH-. This is:

[LiOH]= [OH-]= 0.073 M

Replacing in the definition of pOH:

pOH= -log (0.073 M)

<u><em>pOH= 1.14 </em></u>

In summary, the pOH of the aqueous solution is 1.14

Learn more:

  • <u>brainly.com/question/16032912?referrer=searchResults </u>
  • <u>brainly.com/question/13557815?referrer=searchResults</u>
7 0
2 years ago
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