Answer:
Check if the equipment is in a good condition.
Check if it can cause any harmful hazards.
Check if the equipment is what you need for the experiment
The atomic mass number tells us the number of neutrons and protons in the nucleus of an atom.
Given:
Concentration of HF = 0.20 m
Volume of HF = 110 ml
Concentration of CsOH = 0.10 m
Volume of CsOH = 440 ml
Ka (HF) = 3.5 x 10^-4
Balanced Chemical Equation:
HF + CsOH ===> CsF + H2O
pH of the solution = log ([acid]/[base]) + pKa
pH = log ([0.20*(110/1000)]/[0.10*(440/1000)]) - log(3.5x10^-4)
pH = 3.15<span />
Justin is most likely walking in a grassland biome .
1. Curiosity
2.<span> Necessity</span>
