1.6 X M is the [H] in a HC102 solution that has a pH of 3.78.
Explanation:
Given:
pH of the acid = 3.78
[H+] ion concentration = ?
The dissociation of the acid is shown as:
+ ⇔ HClO2
however, weak acid like HClO2 does not dissociate or ionize completely which causes low hydrogen ion release in the solution.
pH is calculated by applying the formula:
pH = - log [H+]
To calculate the H+ ion concentration the equation will be expressed as:
[H+] =
=
= 1.6 X M
The concentration or molarity of the Hydrogen ion in the solution of the acid is 1.6 X M.
18 is the max number of the atoms and molecules can be on a single stralicule ring.
Answer: option C) Na, Mg, K
Explanation:
Similar chemical properties are expressed by elements found in the same or close groups. There are Seven (7) groups in the Periodic table.
Of all the options, ONLY sodium Na, Magnesium Mg, and Potassium K, are located in closely together with SODIUM and MAGNESIUM being in the Same period, while SODIUM and POTASSIUM are placed in the same Group 1.
Therefore, Na, My, and K are most similar in chemical properties
Answer: less oxygen available at higher altitudes
Explanation:
The higher in elevation you get, the lower the air pressure, allowing oxygen atoms to spread out farther, therefore making available oxygen less.
Answer : The value of is,
Explanation :
First we have to calculate the solubility in mole/L.
The balanced equilibrium reaction will be,
The expression for solubility constant for this reaction will be,
Now put the value of solubility in this expression, we get the of barium carbonate.
Therefore, the value of is,