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3 years ago

Which of the following is the correct formula for sulfuric acid?

Chemistry

2 answers:

lidiya [134]3 years ago

8 0

Answer : The correct option is, (D) $H_2SO_4$

Explanation :

Sulfuric acid is a strong acid which is composed of the elements hydrogen, oxygen and sulfur. Sulfuric acid is a colorless and odorless liquid that is soluble in water and it is highly exothermic.

The formation of sulfuric acid from its ions, is given by the equation:

$2H^+(aq)+SO_4^{2-}(aq)\rightarrow H_2SO_4(aq)$

The molecular formula of sulfuric acid is, $H_2SO_4$

Hence, the correct formula for sulfuric acid is, $H_2SO_4$

kondor19780726 [428]3 years ago

6 0

D. H2SO4 would be correct!

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Molality of a solution is defined as the number of moles of solute dissolved per kg of the solvent.

$Molality=\frac{n\times 1000}{W_s}$

where,

n = moles of solute

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Mole fraction of $CO_2$ is = $3.6\times 10^{-4}$ i.e. $3.6\times 10^{-4}$ moles of $CO_2$ is present in 1 mole of solution.

Moles of solute $(CO_2)$ = $3.6\times 10^{-4}$

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Molality = $\frac{3.6\times 10^{-4}\times 1000}{17.82g}=0.020$

Thus approximate molality of $CO_2$ in this solution is 0.020 m

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