Answer:
6.37.
Explanation:
What is given?
[H (+)] = 4.25 x 10⁻⁷ mol/dm³
Step-by-step solution:
First, let's see the formula to calculate the pH based on the hydrogen ion concentration (H (+)):
![pH=-log\lbrack H^+].](https://tex.z-dn.net/?f=pH%3D-log%5Clbrack%20H%5E%2B%5D.)
*Logarithm must be in base 10!
Our given concentration of hydrogen ion is 4.25 x 10⁻⁷ mol/dm³. Remember that the units of concentration must be in M (mol/L) but in this case, 1 dm³ equals 1 L, so based on this, we have that:
So, we can replace this value in the formula of pH:
![pH=-log\lbrack4.25\cdot10^{-7}]\approx6.37.](https://tex.z-dn.net/?f=pH%3D-log%5Clbrack4.25%5Ccdot10%5E%7B-7%7D%5D%5Capprox6.37.)
The pH of milk would be 6.37 which means that is slightly acid (weak acid).
The answer would be : CO3 2-
Answer:
You too have an amazing day.
Wow Incredible that's the best poem i've ever heard.
You're good.
Answer:
when they have satisfied the octet rule naturally or through bonding to obtain full valence shells
Explanation:
Generally, most atoms of an element are unstable because they have a void in their electron shell to fill, hence, they need to react with other elements to fulfil this task of octet.
Octet rule states that atoms of elements engage in reactions to form compounds so they can have eight (8) valence electrons in their shell. Noble gases e.g argon, neon etc. are elements that have naturally satisfied this octet rule by possession of 8 valence electrons in their shell. Other elements that do not have this naturally becomes reactive and enter bonding with other atoms to obtain full valence shells.
Answer:
6.66 mol
Explanation:
(atm x L) ÷ (0.0821 x K)
(0.875 x 250) ÷ (0.0821 x 400)
=6.66108
