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leva [86]
3 years ago
9

Which measurement density or conductance do you believe gives a more accurate method to determine the salt concentration of a so

lution?
Chemistry
1 answer:
lakkis [162]3 years ago
8 0
<span>Conductance gives a more accurate method to determine the salt concentration of a solution.Conductivity would be used with conductors such as metals that include copper and silver.Conductivity is a measure of water's capability to pass electrical flow. This ability is directly related to the concentration of ions in the water. These conductive ions come from dissolved salts and inorganic materials such as alkalis, chlorides, sulfides and carbonate compounds</span>
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How many grams of glucose are needed to prepare 144.3 mL of a 1.4%(m/v) glucose solution?
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Answer:

2.0202 grams

Explanation:

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so ?g glucose = 144.3 mL soln

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What is the ph of a solution labeled .30 trimethylamine k for trimethylamine is 7.42 x 10^4
valentina_108 [34]

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First We need to understand the structure of trimethylamine

Due to the grades of the bond in the nitrogen with a hybridization sp3 is 108° approximately, then is generated a dipole magnetic at the upper side of the nitrogen, this dipole magnetic going to attract a hydrogen molecule of the water making the water more alkaline

C3H9N+ H2O --> C3H9NH + OH-

k=\frac{[C3H9NH]*[OH-]}{[C3H9N]}

Then:

The concentration of the trimethylamine is 0.3 and the concentration of the ion C3H9NH is equal to the OH- relying on the stoichiometric equation. We could find the concentration of the OH- ion with the square root of the multiplication between k and the concentration of trimethylamine

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When combining acids and water, water should always be added to the acid. True or False?
scoundrel [369]

Answer:

False

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8 0
2 years ago
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