The total pressure of gases is equivalent to 739mmH divided by the area.
<h3>How to calculate the total pressure of gases?</h3>
To calculate the total pressure of gases, the next formula can be used:
- Total pressure: Force/area
- Total pressure 739 mmH/area
<h3>How to calculate the area?</h3>
The area of a cylinder is equal to 2πrh+2πr².
You can know the radio by checking the measurement of the base of the graduated cylinder. Also, you can determine the height by observing how many mm the gas is occupying. Then follow these steps:
- Find out the area based on the formula provided.
- Replace the area in the pressure formula.
- Solve the formula.
Note: This question is incomplete because the height occupied by the gas and the radio of the cylinder are not provided. Due to this, I answered this question based on general knowledge.
Learn more about cylinder in: brainly.com/question/3692256
Answer:
The pH of the solution is 2.873
Explanation:
<u>Given:</u>
- Pka = 3.89
- pH of a 0.0140 M
Let the solution of the uric acid be HA. We have to set up the ICE table as follows;
HA(aq) + H20(l) ⇄ H3O^+(aq) + A^-
I 0.0140 0 0
C -x +x +x
E 0.0140 - x x x
Ka = 10^-(pka)
= 10^-3.89
= 1.28 x 10^-4
Ka = [H+] * [A-]/[HA]
=> 1.28 x 10^-4 = [H+]^2 / 0.0140
=>[H+]^2 = 1.28 x 10^-4 x 0.014
=> [ H+] = 1.338656 x 10^-3
so pH = - log [ H+ ] = - log 1.338656 x 10^-3
= 3 - log 1.338656
= 2.87333101111
Learn more about acids here: brainly.com/question/12978582
When a gamma ray is emitted from the nucleus of an atom it reduces the overall energy of the nucleus. Emission of gamma rays almost happens along with beta and alpha emissions. After the two emissions, the nucleus of the atom would still be in an excited state. To achieve stability, gamma rays are emitted which will decrease the overall energy of the nucleus.
The metalloids<span>; boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te), polonium (Po) and astatine (At) are the elements found along the step-like line between metals and non-metals of the </span>periodic table<span>. So there should be 8.</span>
Answer: 218.75 kPa
Explanation:
Carbon dioxide is a gas with chemical formula CO2.
Original volume of CO2 (V1) = 3.50 L
Original pressure of CO2 (P1) = 125 kPa
New pressure of CO2 (P1) = ?
New Volume of CO2 (V2) = 2.0 L
Since pressure and volume are given while temperature is constant, apply the formula for Boyle's law
P1V1 = P2V2
3.50L X 125 kPa = P1 x 2.0L
437.5 L•kPa = 2.0L•P1
Divide both sides by 2.0L
437.5 L•kPa/2.0L = 2.0L•P1/2.0L
218.75 kPa = P1
Thus, the new pressure of carbon dioxide would be 218.75 kPa