The total number of diprotic acids among the following is
$\begin{matrix} H_{3} P O_{4} & H_{2} S O_{4} & H_{2} C O_{3} & H_{2} S_{2} O_{2} H_{3} B O_{3} & H_{3} P O_{2} & H_{2} C r O_{4} & H_{2} S O_{3} \end{matrix}$ ___

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Solution

$H_{2} S O_{4}, H_{2} C O_{3}, H_{2} S_{2} O_{2}, H_{2} C r O_{4}, H_{3} P O_{3}, H_{2} S O_{3}$

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The total number of diprotic acids among the following is:
$H_{2} S O_{4}, H_{2} C r O_{4}, H_{3} P O_{3}, H_{2} S O_{3}, H_{3} B O_{3}, H_{2} S_{2} O_{7}, H_{3} P O_{4} .$ ___

C H_3 - O H | C | H - H | C | H - C H_3

H_2 S O_4 - ------ \to

Q. Balanced equations for the manufacture of sulphuric acid by the contact process is

{2 S O}_{2} + O_{2} 450^{0} C - -- \to V_{2} O_{2} {2 S O}_{x} {S O}_{3} + H_{2} {S O}_{4} \to H_{2} S_{2} O_{y} H_{2} S_{2} O_{7} + H_{2} O \to 2 H_{2} {S O}_{4}

Find the value of x and y.

H_{3} {P O}_{4}

is a tribasic acid, it undergoes ionization as:

H_{3} {P O}_{4} ⇋ H^{+} + H_{2} {P O}_{4}^{-}; K_{1}

H_{2} {P O}_{4}^{-} ⇌ H^{+} + H {P O}_{4}^{2 -}; K_{2}

H {P O}_{4}^{2 -} ⇌ H^{+} + {P O}_{4}^{3 -}; K_{3}

Then, equilibrium constant for the following reaction will be:

H_{3} {P O}_{4} ⇌ 3 H^{+} + {P O}_{4}^{3 -}

Find the mass of $K N O_{3}$ required to produce 126 kg of nitric acid. Find whether a larger or smaller mass of $N a N O_{3}$ is required for the same purpose.
$K N O_{3} + H_{2} S O_{4} \to K H S O_{4} + H N O_{3} N a N O_{3} + H_{2} S O_{4} \Rightarrow N a H S O_{4} + H N O_{3}$

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The total number of diprotic acids among the following is H3PO4H2SO4H2CO3H2S2O2H3BO3H3PO2H2CrO4H2SO3 ___

H2SO4, H2CO3, H2S2O2, H2CrO4, H3PO3, H2SO3

The total number of diprotic acids among the following is
$\begin{matrix} H_{3} P O_{4} & H_{2} S O_{4} & H_{2} C O_{3} & H_{2} S_{2} O_{2} H_{3} B O_{3} & H_{3} P O_{2} & H_{2} C r O_{4} & H_{2} S O_{3} \end{matrix}$ ___

$H_{2} S O_{4}, H_{2} C O_{3}, H_{2} S_{2} O_{2}, H_{2} C r O_{4}, H_{3} P O_{3}, H_{2} S O_{3}$