Question

A solution contains 40 g of common salt in 320 g of water. Calculate the concentration in terms of mass by mass percentage of the solution​

Answer 1

Answer:

360 gm answer

Explanation:

40+320=360gm answer

Answer 2

$\large\rm {\underbrace {\underline {Given}}}:-$

• Mass of Solute ( salt ) ➡️ 40 g

• Mass of Solvent ( water ) ➡️ 320 g

$\large\rm {\underbrace {\underline {To \: Find}}}:-$

• Mass by Mass Percentage Solution.

$\large\rm {\underbrace {\underline {Formula \: required}}}:-$

$\\ \small \bigstar{ \underline{\boxed{\rm{Mass\:by\: mass \: Percentage\: of\:a \: Solution=\dfrac{Maas\:of\:Solute}{Mass\:of\:Solution}\times{100}}}}} \bigstar</p><p>$

$\large\rm {\underbrace {\underline {Solution}}}:-$

$\small \rm Mass\: of \: Solution → \: Mass \: of \: Solute + Mass \: of \: Solvent$

$\small\implies \rm Mass\: of \: Solution → (40+320)\:g$

$\small \implies \rm Mass\: of \: Solution → \: 360 \: g$

$\small \rm \therefore Mass \: Percentage↬ \frac{Mass \: of \: Solute}{Mass \: of \: Solution} \times 100$

$\small \rm \implies Mass \: Percentage↬ \dfrac{ \cancel4 \cancel0 \: \cancel g}{ \cancel{36 } \cancel 0 \: \cancel g} \times 100$

$\small \rm \implies Mass \: Percentage↬ \frac{100}{9}$

$\small \rm \therefore Mass \: Percentage↬{ \underline {\boxed{ \bf 11.1\% }}}$

▶️Hence, the mass by mass percentage of a Solution is 11.1%