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prohojiy [21]
2 years ago
6

It take 38.70cm³ of 1.90 NaO4 to neutralize 10.30cm³ of H2So4 in a battery. Calculate the molar concentration of H2So4

Chemistry
1 answer:
Anna35 [415]2 years ago
5 0

Answer:

The molar concentration of base Cb = 14.2777M

Explanation:

Volume of acid Va = 38.70cm^3,

Concentration of acid NaO4 C_a= 1.90M

Volume of Base Vb = 10.30cm^3

Also, Equation of the reaction

H2SO4 + 2NaOH = Na2SO4 + 2H2O

No of mole of acid Na = 1

No of mole of base Nb = 2

CaVa/CbVb = Na/Nb

Cb = CaVaNb/VbNa

Cb = 1.9×38.7×2/(10.30×1)

Therefore, Cb = 14.2777M

The molar concentration of base Cb = 14.2777M

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2 years ago
A state property X has a value 89.6 units. It undergoes the following changes, first increase by
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Answer:

B) -4.1 units

Explanation:

According to this question, a state property X has a value 89.6 units. It undergoes the certain changes as follows:

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- then decrease by 12.2 units

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This can be mathematically represented by 89.6 - {3.6 + 18.7 - 12.2 - x) = 85.5

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= (3.6 + 18.7) - (12.2 + 14.2)

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3 years ago
The moving of molecules from areas of high concentration to that of low concentration to gain energy is best described as
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The moving of molecules from areas of high concentration to that of low concentration to gain energy is best described as passive transport

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Draw the Lewis structure for carbonate
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A student finds that an unknown element reacts with elements from Group 2 (IIA). To which group does the unknown element most li
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