Only a few ions (in comparison to others that totally break apart)
If they didn't wear gloves while treating patients then they could get the bacteria from the hands onto the patient and it could lead to an infection.
pH of buffer solution : 4.32
<h3>Further explanation
</h3>
A buffer solution is a solution that can maintain a good pH value due to the addition of a little acid or a little base or dilution.
The buffer solution can be acidic or basic
Acid buffer solutions consist of weak acids(H₂CO₃) and their salts.(NaHCO₃)
mol H₂CO₃
mol NaHCO₃
![\tt [H^+]=Ka\dfrac{mole~weak~acid}{mole~salt}\\\\(H^+]=1.8\times 10^{-5}\dfrac{0.008}{0.003}=4.8\times 10^{-5}\\\\pH=5-log~4.8=4.32](https://tex.z-dn.net/?f=%5Ctt%20%5BH%5E%2B%5D%3DKa%5Cdfrac%7Bmole~weak~acid%7D%7Bmole~salt%7D%5C%5C%5C%5C%28H%5E%2B%5D%3D1.8%5Ctimes%2010%5E%7B-5%7D%5Cdfrac%7B0.008%7D%7B0.003%7D%3D4.8%5Ctimes%2010%5E%7B-5%7D%5C%5C%5C%5CpH%3D5-log~4.8%3D4.32)
I think the correct answer from the choices listed above is the last option. The pressure of an enclosed gas depends on the number of molecules in a unit volume and their average kinetic energy, its chemical composition, the altitude about sea level and the number of atoms per molecule. Hope this helps. Have a nice day.
Molar mass ( CuSO₄) = 159.609 g/mol
159.609 g ----------------- 6.02 x 10²³ molecules
? g ------------------ 3.36 x 10²³ molecules
mass = ( 3.36 x10²³) x 159.609 / 6.02 x 10²³
mass = 5.36 x 10²⁴ / 6.02 x 10²³
mass = 8.90 g
hope this helps!
