Question

a solution contains 40 grams of common salt in 320 grams of water calculate the concentration in terms of mass by mass percentage of solution​

Answer 1

$\huge \red{ram \: ram \: ji \: } \\ \\ \huge \boxed{ = ans. = > }$

Mass (solute) = 40 gram

Mass (solvent) = 320 gram

Mass (solution) = Mass (solute) + Mass (solvent)

= 40 gram + 320 gram

= 360 gram

∴ Mass % (solution) = [ Mass (solute)/Mass (solvent)] × 100

= [40/360] × 100

= 11.1 %

$\huge \pink{hope \: it \: helps \: u}$

$< = = = brainliest \: pls \: = = = >$

Answer 2

HEY,MATE HERE IS YOUR ANSWER

Mass of common salt(solute)=40g

mass of solution=40g+320g=360g

concentration=mass solute/mass of solution*100

=40/360*100

=11.11%