Answer:
0.1
Explanation:
Using Henderson-Hasselbalch equation
pH = pKa + log ( base / acid )
pH= 9.0 , pKa = 10.0
9.0 = 10 + log ( base / acid )
9 - 10 = log ( base / acid )
10⁻¹ = ( base / acid )
( base / acid ) = 0.1
The answer is A. Mass
The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them. This means that the force of gravity increases with mass, but decreases with increasing distance between objects.
(g) give 5 star rating helped you brother too smart
<span>Although the molecules have similar electron domains, this doesn't mean they will have the same molecular shapes. This is because they differ in the number of nonbonding domains. The nonbonding domains play a vital role in how the shape of the molecule will turn out.</span>