6.28×1013+7.30×1011 this =13741.94
Answer:
C6H5COOH + OH- —> C6H5COO- + H2O
Explanation:
C6H5COOH + OH- —> C6H5COO- + H2O
In the reaction above, C6H5COOH donate a proton(H+) to form the carboxylate ion C6H5COO-. The proton (H+) combines with the OH- to form H2O.
This can better be understood in the illustration below
C6H5COOH + NaOH —> C6H5COONa + H2O
In nickel-78, there are 28 protons, 28 electrons, and 50 neutrons.
The protons is always the atomic number.
The electron would always be the atomic number when it's a neutral atom. (Different for isotopes)
The neutrons is always the number that makes up the mass with protons. You can figure it out by subtracting atomic mass by protons. (78-28 = 50)
D=m/v ⇒v=m / d
d=density
m=mass
v=volume
d(Benzene)=0.88 g/cm³
m=20.0 g
v=m/d
v=20.0 g / (0.88 g/cm³)=22.73 cm³
Solution: v=22.73 cm³=22.73 ml
