Answer:
An electrical conductivity meter (EC meter) measures the electrical conductivity in a solution. It has multiple applications in research and engineering, with common usage in hydroponics, aquaculture, aquaponics, and freshwater systems to monitor the amount of nutrients, salts or impurities in the water.
The question is asking to state the conclusion that can be formulated, base on the problem or the given analysis of the data, about the accuracy and precision and base on my research, i would say that the Accuracy is Poor but the Precision is Good. I hope this would help you
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To convert to L
2.5 hm^3 * (100m/hm)^3 *1000 L/m^3 gives a volume of 2.5*10^9 L
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Answer: 86.7 %
Explanation:
To calculate the moles, we use the equation:
a) moles of 
According to stoichiometry :
1 moles of give = 1 mole of 
Thus 0.307 moles give =
of
Mass of 
Therefore, the percent yield for the reaction is, 86.7%
