Lydia and Damien will select bases that have a small Kb and which are found in the storage cabinet in solutions with high concentrations.
Explanation:
Before choosing a bottle Lydia and Damien should consult a Kb (base dissociation constant) table of bases. The lower the Kb the weaker the base.
Because they were asked by the profesor to select bottles of concentrated bases they will choose the solution that have the highest concentration. Weak bases that are commonly found in laboratories are triethylamine and pyridine.
Learn more:
about weak bases
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Answer:
The gravitational pull from the moon has the most effect on the surface waters of earth.
Answer:
17.5moles
Explanation:
The number of moles in a substance can be calculated by using the formula;
Number of moles (n) = mass (m) ÷ molar mass (MM)
According to this question, mass of ammonia (NH3) = 297g
Molar Mass of NH3 = 14 + 1(3)
= 17g/mol
n = 297/17
n = 17.47
Number of moles of NH3 = 17.5moles