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Rashid [163]
2 years ago
9

PLEASE HELP!!!!! Is it as critcal for your tap water to be a good buffer as it is for the water at the nearest lake to be a good

buffer? Why or why not?
Explain your answer.​
Chemistry
1 answer:
Liula [17]2 years ago
3 0

The water at the nearest lake is a good buffer than water from the tap.

<h3>Buffer solutions</h3>

A buffer solution is a solution that has the ability to resist the pH change of the solution because it either contains a weak acid and its conjugate base or a weak base and its conjugate acid.

Examples of naturally containing buffer solution is the blood which contains bicarbonate as a buffering system that maintains its pH.

In the lake, there are presence of shoreline buffer which is a strip of natural vegetation along the shoreline of a lake. It creates a natural buffer system that helps resist the acidifying effect of additional acid rainfall.

Therefore, the water at the nearest lake is a good buffer than water from the tap.

Learn more about buffers here:

brainly.com/question/22390063

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Given 6193 mL of a gas at 62.3 °C. What is its volume at 38.1 °C?
Luden [163]

Answer:

5746.0 mL.

Explanation:

We can use the general law of ideal gas:<em> PV = nRT.</em>

where, P is the pressure of the gas in atm.

V is the volume of the gas in L.

n is the no. of moles of the gas in mol.

R is the general gas constant,

T is the temperature of the gas in K.

If n and P are constant, and have two different values of V and T:

<em>V₁T₂ = V₂T₁</em>

<em></em>

V₁ = 6193.0 mL, T₁ = 62.3°C + 273 = 335.3 K.

V₂ = ??? mL, T₂ = 38.1°C + 273 = 311.1 K.

<em>∴ V₂ = V₁T₂/T₁ </em>= (6193.0 mL)(311.1 K)/(335.3 K) = <em>5746.0 mL.</em>

5 0
2 years ago
True or false
sweet-ann [11.9K]

Answer:

True.

But it only changes in physical change.

How?

Explanation:

The chemical reaction produces a new substance with new and different physical and chemical properties. Matter is never destroyed or created in chemical reactions. The particles of one substance are rearranged to form a new substance.

In a physical change, a substance's physical properties may change.

A chemical change is a permanent change. A Physical change affects only physical properties i.e. shape, size, etc. ... Some examples of physical change are freezing of water, melting of wax, boiling of water, etc. A few examples of chemical change are digestion of food, burning of coal, rusting, etc.

Hope this helps!

8 0
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Answer:

An Arrhenius Base

Explanation:

The definition of this is a base that is a hydroxide ion donor.

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mars1129 [50]

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Explanation:

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Cloud [144]

Answer:

112.18 g.

Explanation:

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