The concentration of hydroxide ion of a solution with a pH of 8. 25 is 1.77× M
Calculation,
The pH of a solution tells us about concentration of the ion ( proton ) in solution. However, if we know the value of pH , we can calculate pOH with the help of pH and from pOH we can find concentration of hydroxide ions in the solution.
pH + pOH = 14
8. 25 + pOH = 14
pOH = 14 - 8. 25 = 5.75
Since, pH = -㏒[ ]
Similarly, pOH = -㏒[ ]
If pOH = 5.75 , that means that -㏒[ ] = 5.75 ,which means that,
[ ] = = 1.77×.
So, we know that the concentration of the ions in the solution with pH of 8.25 is 1.77× Molar
to learn more about hydroxide ion
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Answer:
<h2>mass = 50 g</h2>
Explanation:
Density of a substance can be found by using the formula
From the question
Density = 2.5 g/mL
volume = 20 mL
To find the mass substitute the values into the above formula and solve for the mass
That's
Making mass the subject we have
mass = Density × volume
mass = 2.5 × 20
We have the final answer as
<h3>mass = 50 g</h3>
Hope this helps you
Convection is the transfer of heat/thermal enrgy by the movement of a fluid(either a liquid or gas).
The answer is Boyle's law. Boyle's law states that the volume of a fixed mass of a gas is inversely proportional to its pressure at a constant absolute temperature.
That is; V α 1/P , at constant temperature and a fixed amount of the gas.
Such that V= k/P where k is a constant
Vol.250 before its to much pressure