The amount of $BaSO_4$ formed upon mixing $100 \ mL$ of $20.8 \%$ $BaCl_2$ solution with $50 \ mL$ of $9.8 \%$ $H_2SO_4$ solution will be ............. $g$
( $Ba = 137, Cl = 35.5, S = 32, H = 1$ and $O = 16$ )

One mole of $P_4$ reacts with $8$ moles of $SOCl_2$ to give $4$ moles of $A$,$x$ moles of $SO_2$ and $2$ moles of $B$. $A$,$B$ and $x$ respectively are

During the process of fermentation,the number of moles of $CO_2$ liberated from one mole of glucose is

The heat of neutralisation of a strong acid and a strong base is $13.7 \ kcal$. The heat released when $0.6 \ mole$ $HCl$ solution is added to $0.25 \ mole$ of $NaOH$ is: (in $kcal$)

The maximum amount of $BaSO_4$ precipitated on mixing $BaCl_2$ $(0.5 \ M)$ with $H_2SO_4$ $(1 \ M)$ will correspond to.....$M$

$A + 2B + 3C \rightleftharpoons AB_2C_3$. Reaction of $6.0 \ g$ of $A$,$6.0 \times 10^{23}$ atoms of $B$,and $0.036 \ mol$ of $C$ yields $4.8 \ g$ of compound $AB_2C_3$. If the atomic mass of $A$ and $C$ are $60$ and $80 \ amu$,respectively,the atomic mass of $B$ is .............. $amu$ (Avogadro no. $= 6 \times 10^{23}$)