Explain the conductance result for pure H2O?

1 answer:

8 0

The conductivity of the electrolyte (or conductivity) is a physical quantity that characterizes the conductivity of the electrolyte. The unit of the international unit is Siemens per meter (S / m).Measuring the conductivity of an electrolyte is a routine method for determining the ionic content of a solution in industrial and environmental monitoring, and this method is fast, inexpensive and reliable. [1]. For example, it can be used to continuously monitor the real-time performance and transformation of water purification systems.In many cases, the electrolyte conductivity is directly related to the total dissolved solids (T.D.S.) in the solution. The conductivity of high quality deionized water is about 5.5 μS / m, the conductivity of drinking water is in the range of 5-50 mS / m, and the conductivity of seawater is about 5 S / m [2] (ie, Ion water conductivity 100 million times higher).Traditionally, the conductivity is measured by measuring the AC resistance of the solution between the two electrodes.

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What are the horizontal parts of the periodic table called

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3 years ago

a sample of an oxide of antimony (sb) contain 19.75 g of antimony combine with 6.5 g of oxygen . what is the simplest formula fo

frez [133]

Explanation:

The given data is as follows.

Mass of antimony = 19.75 g

Molar mass of Sb = 121.76 g/mol

Therefore, calculate number of moles of Sb as follows.

Moles of Sb = $\frac{mass}{\text{molar mass}}$

= $\frac{19.75 g}{121.76 g/mol}$

= 0.162 mol

Mass of oxygen given is 6.5 g and molar mass of oxygen is 16 g/mol. Hence, moles of oxygen will be calculated as follows.

Moles of oxygen = $\frac{mass}{\text{molar mass}}$

= $\frac{6.5 g}{16 g/mol}$

= 0.406 mol

Hence, ratio of moles of Sb and O will be as follows

Sb : O

$\frac{0.162}{0.162} : \frac{0.406}{0.162}$

1 : 2.5

We multiply both the ratio by 2 in order to get a whole number. Therefore, the ratio will be 2 : 5.

Thus, we can conclude that the empirical formula of the given oxide is $Sb_{2}O_{5}$ .

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3 years ago

How is the electron cloud model different from Bohr's atomic model?

Cerrena [4.2K]

In the electron cloud model, the atoms are in unpredicted places. But in the Bohr model, atoms are in "rows"

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3 years ago

Are there chemical reactions happening in our home

White raven [17]

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Hope it helps

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13. What is the total pressure inside the container

nasty-shy [4]

<u>Answer:</u> The total pressure inside the container is 77.9 kPa

<u>Explanation:</u>

Dalton's law of partial pressure states that the total pressure of the system is equal to the sum of partial pressure of each component present in it.

To calculate the total pressure inside the container, we use the law given by Dalton, which is:

$P_T=p_{N_2}+p_{O_2}+p_{Ar}$