Burette is a very accurate measuring instrument when adding solutions and has a measurement error of 0.05 mL.
Small volumes of solutions can be transferred from the burette at a controllable rate.
In this instance NaOH is in the burette.
Initial reading of NaOH is 0.20 mL
end point is the point at which the chemical reaction reaches completion. In acid base reactions, end point is when all the H⁺ ions have reacted with OH⁻ ions.
final reading of NaOH is 24.10 mL
to find the volume of NaOH dispensed we have to find the difference between final reading and initial reading
volume of NaOH added = 24.10 mL - 0.20 mL = 23.90 mL
volume of NaOH dispensed is 23.90 mL
Answer:

FCI=88.0818 MM≅88 MM
Explanation:
Empirical correlation based on the work of Bridgwater and Mumford (1979):
For Liquid or solid phase Plants:
F<60,000 tonne/yr Eq (1)
F≥60,000 tonnes/yr Eq (2)
Where:
N is the number of functional units
F is the process throughput tonnes/yr
In our case F=40,000 tonne/yr <60,000 tonne/yr, We are going to use Eq (1)
F<60,000 tonne/yr
N=8, F=40,000 tonne/yr

FCI=88.0818 MM≅88 MM
Answer:
D. period is reciprocal of frequency.
Explanation:
Answer:
16.84 g
Explanation:
Assuming that the ethanol is free of water
the number of moles of ethanol to generate 500 KJ = 500 / 1368 = 0.3655 mol
molar mass of ethanol = 46.07 g/mol
mass of ethanol needed = 46.07 × 0.3655 = 16.84 g
×
atoms are in 0.0015 mol of fluorine gas
<h3>
What is fluorine?</h3>
The chemical element fluorine has an atomic number of 9 and the symbol F. The lightest halogen, it is an extremely poisonous, pale yellow diatomic gas under normal conditions. With the exception of argon, neon, and helium, it reacts with every other element, making it the most electronegative and reactive element.
Fluorine is the 24th most abundant element overall and the 13th most abundant on Earth. When added to metal ores to decrease their melting temperatures for smelting, fluorite, the main mineral source of fluorine that gave the element its name, was first recorded in 1529. The Latin word fluo, which means "flow," gave the mineral its name.
Learn more about fluorine
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