4 g equimolar mixture of NaOH and Na_{2}CO_{ | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) Let the number of moles of $NaOH$ and $Na_{2}CO_{3}$ be $a$ each,as the mixture is equimolar.The molar mass of $NaOH$ is $40 \ g/mol$ and the mola

Vedclass · Accepted Answer

$1$

Vedclass · Answer

(A) Let the number of moles of $NaOH$ and $Na_{2}CO_{3}$ be $a$ each,as the mixture is equimolar.The molar mass of $NaOH$ is $40 \ g/mol$ and the molar mass of $Na_{2}CO_{3}$ is $106 \ g/mol$.The total mass of the mixture is given by: $W_{NaOH} + W_{Na_{2}CO_{3}} = 4 \ g$.Substituting the masses in terms of moles: $(a 	imes 40) + (a 	imes 106) = 4$.$146a = 4 \Rightarrow a = \frac{4}{146} \ mol$.The mass of $NaOH$ $(x)$ is: $x = a 	imes 40 = \frac{4}{146} 	imes 40 = \frac{160}{146} \approx 1.095 \ g$.Rounding to the nearest integer,$x = 1 \ g$.

Column-$I$	Column-$II$
$A$. $5.6 \ L$ of $SO_{2(g)}$ at $STP$	$I$. $32 \ g$
$B$. $1.2 \times 10^{24}$ atoms of oxygen	$II$. $66 \ g$
$C$. $33.6 \ L$ of $CO_{2(g)}$ at $STP$	$III$. $42 \ g$
$D$. $1.5 \ g$-molecule of $N_2$	$IV$. $16 \ g$

$4 \ g$ equimolar mixture of $NaOH$ and $Na_{2}CO_{3}$ contains $x \ g$ of $NaOH$ and $y \ g$ of $Na_{2}CO_{3}$. The value of $x$ is $..... \ g$. (Nearest integer)

Similar Questions

Which of the following statements is incorrect for the compound $A_xB_y$?

Match the following:

Column-$I$ Column-$II$

$A$. $5.6 \ L$ of $SO_{2(g)}$ at $STP$ $I$. $32 \ g$

$B$. $1.2 \times 10^{24}$ atoms of oxygen $II$. $66 \ g$

$C$. $33.6 \ L$ of $CO_{2(g)}$ at $STP$ $III$. $42 \ g$

$D$. $1.5 \ g$-molecule of $N_2$ $IV$. $16 \ g$

The correct match is:

The density of an equimolar mixture of $CH_4$ and $CO$ at $STP$ is ............... $g \, L^{-1}$.

What are the different elements present in the mineral barite?

Calculate the molarity of each of the following solutions: $(a)$ $30 \, g$ of $Co(NO_3)_2 \cdot 6H_2O$ in $4.3 \, L$ of solution $(b)$ $30 \, mL$ of $0.5 \, M \, H_2SO_4$ diluted to $500 \, mL$.

Vedclass Test Series

Exam Paper Generator

Online Exam Module