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Alecsey [184]
2 years ago
11

When a strong acid such as hcl is added to the carbonic acid buffer system, _________

Chemistry
1 answer:
siniylev [52]2 years ago
8 0

When a strong acid such as HCl is added to the carbonic acid buffer system, <u>more </u><u>carbonic </u><u>acid is </u><u>formed</u><u>.</u>

<h3>What is a buffer system?</h3>

A buffer system prevent the pH change and resist it when an acid or base is added to the solution.

A buffer system is prepared by weak acid or weak base and their salts. There are three types of buffer system present.

  • Carbonic acid buffer
  • Plasma protein buffer
  • Phosphate buffer

Thus, the correct option is b. More carbonic acid is formed.

Learn more about buffer system

brainly.com/question/3435382

#SPJ4

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What is the molarity of an aqueous solution containing 1.5 moles of calcium chloride in 2.75 L of solution? A. 0.004 M B. 0.55 M
kondor19780726 [428]

Answer:

B. 0.55 M

Explanation:

Step 1: Given data

  • Moles of calcium chloride (solute): 1.5 mol
  • Volume of solution: 2.75 M

Step 2: Calculate the molarity of the aqueous solution

The molarity is a way to express the concentration of a solution. It is equal to the quotient between the moles of solute and the liters of solution.

M = moles of solute / liters of solution

M = 1.5 mol / 2.75 L = 0.55 mol/L = 0.55 M

6 0
3 years ago
Which of the following sequences of elements would all have four valence electrons?
timama [110]

Answer:b

Explanation:

8 0
3 years ago
What is the kinetic energy of the emitted electrons when cesium is exposed to UV rays of frequency 1.80×1015Hz ?
Soloha48 [4]

The kinetic energy of emitted electrons when cesium is exposed to UV rays of frequency 1.80 * 10 ^15 is 3.054 x 10 ^- 19 J.

Explanation:

To calculate the kinetic energy of emitted electrons,

It is given that the frequency is 1.80* 10^15 Hz

We have,

KE = E – Eo = hv –hvo

Where, h = 6.626 x 10^ - 34 Js

Given frequency = 1.4 x 10 ^ 15 Hz

vo (Threshold frequency) for cesium = 9.39 x 10 ^ 14 Hz

Applying in equation,

we get

KE = 6.626 x 10^34 (1.4 x 10^15 - 9.39 x 10^14)

KE= 3.054 x 10^-19 J

[Note: Here, threshold frequency of Cesium is not provided. Apply the correct threshold frequency from the part A]

7 0
3 years ago
Visible light, which has a wavelength of between 380 nm and 760 nm, is usually
AlexFokin [52]

B.  not fully absorbed by the atmosphere.

Explanation:

Visible light, which has a wavelength of between 380nm and 760nm is usually not fully absorbed by the atmosphere.

The earth's atmosphere is transparent to visible light emanating from the sun.

When visible light is radiated out from the sun, on reaching the atmospheric cover of the earth, it goes through without restraints.

  • Little to no interaction occurs between the atmospheric cover of earth and visible light.
  • This is why the surface is bright and receives sunlight.
  • Other more energetic radiations interacts with atmosphere.
  • Some of them gets cut off and some partially penetrate through.

learn more:

Light waves brainly.com/question/8145673

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4 0
3 years ago
A temperature of 125 °C is the same as ________.
AveGali [126]

Answer:

257 F

Explanation:

I have answered ur question

7 0
3 years ago
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