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3 years ago

Why do farmers determine the texture and pH level ( acid 1-5, base 7-14) of their farm soil?

Chemistry

1 answer:

blagie [28]3 years ago

7 0

Answer:

To determine the related characteristic of soil that may impact the crop production

Explanation:

Assessment of soil properties is necessary to determine the soil health. Not only this, it also gives information about soil activity, type and severity. There are various attributes to soil properties –

a) Soil texture, color, layering

b) Size of soil constituents

c) pH

d) Soil crust and its properties

e) Organic carbon

f) Soil and water salinity etc

It is essential to know about the soil pH as it affects several factors such as availability of nutrients, presence of toxic elements in it, soil structure, bacteria and its survival rate etc. All these factors affect the crop product ability.

Thus, it is essential to determine the texture and pH of farm soil

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WILL GIVE BRAINLIEST

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Answer:

The pressure of the balloon is 0.98 atm

Explanation:

Using the equation P1V1 = P2V2, you can solve for the value of V2, which is 0.98 atm.

(P1V1)/P2 = V2

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(6.5*1.5)/10.00

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3 years ago

How many grams of SnO2 are required to produce 1.20x10^21 molecules of water?

Drupady [299]

Answer:

<u>0.150 grams</u>

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Explanation:

The balanced chemical reaction to obtain water from SnO₂ is:

SnO₂ + 2H₂ → Sn + 2H₂O

The mole ratio is:

$\dfrac{1molSnO_2}{2molH_2O}$

Find the number of moles equivalent to 1.20× 10²¹ molecules of water, using Avogadro's number:

$1.20\times 10^{21}molecules\times \dfrac{1mol}{6.022\times 10^{23}molecules}=1.9927\times 10^{-3}moles$

From the mole ratio, the number of moles of SnO₂ are half the number of moles of water. That is:

0.0019927 moles / 2 = 0.00099635 moles of SnO₂

Use the molar mass of SnO₂ to convert the number of moles to grams:

molar mass of SnO₂ = 150.71g/mol

mass of SnO₂ = 0.00099635mol × 150.71 g/mol = 0.150 grams.

The answer must be reported with 3 significant figures.

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3 years ago