<u>Answer:</u> The hydrogen ion concentration of his saliva is 
<u>Explanation:</u>
pH is defined as the negative logarithm of hydrogen ion concentration present in the solution.
To calculate the pH of the solution, we use the equation:
![pH=-\log[H^+]](https://tex.z-dn.net/?f=pH%3D-%5Clog%5BH%5E%2B%5D)
We are given:
pH of the saliva = 6.1
Putting values in above equation, we get:
![6.1=-\log[H^+]](https://tex.z-dn.net/?f=6.1%3D-%5Clog%5BH%5E%2B%5D)
![[H^+]=10^{-6.1}=7.94\times 10^{-7}M](https://tex.z-dn.net/?f=%5BH%5E%2B%5D%3D10%5E%7B-6.1%7D%3D7.94%5Ctimes%2010%5E%7B-7%7DM)
Hence, the hydrogen ion concentration of his saliva is
that were all round and smooth
Answer:
The correct answer is C ions from the solute molecules have a strong attraction to the polar solvent molecules.
Explanation:
NaCl or Sodium chloride is an ionic compound which easily get dissolved in polar molecular compound such as water(H2O).
Both NaCl and H2O are polar compound because the atoms that forms NaCl and H2O have vast difference in their electronegativities.As a result the bonding electrons in both NaCl and H2O are not equally shared.
NaCl get dissolved in water molecules by dipole dipole interaction.
Answer:- b. +3
Explanations:- Charge of a metal ion is equal to the number of valence electrons it has as it loses these electrons to have its nearest noble gas like electron configuration.
Al has 3 valence electrons and being a metal it loses all of these and so the charge of Al ion is +3. It could be shown as:
So, the right choice is b. 3+.
So it can break down the egg’s exterior and enter
