Question

If 11 g of oxallic acid is dissolved in 500ml of solution what is mass % of phallic acid

Answer 1

Given

Mass of Oxalic acid (solute) = 11g

Mass of Solution = 500ml

Density = 1.1 g/ml

We know that

Mass %

%

of solute = MassofsoluteMassofsolution×100

M

a

s

s

o

f

s

o

l

u

t

e

M

a

s

s

o

f

s

o

l

u

t

i

o

n

×

100

Mass of solution = Volume of solution ×

×

Density of solution

Mass of solution =500×1.1=50×11g

500

×

1.1

=

50

×

11

g

Mass %

%

of the solute =11×10011×50=2%

Answer 2

Answer:

The mass percentage is 2%

Explanation:

Given the mass of Oxalic Acid $=11g$

The volume of the solution$=500mL$

The density of the solution  $=1.1gmL^{-1}$

Step 1

Determining the mass of the solution.

The mass of the solution will be the product of the density of the solution and the volume given.

Mass $= (500mL)(1.1gmL^{-1})$

$=550g$

Step 2

Determining the mass percentage of the solution.

The mass percentage will be

[ (mass of oxalic acid)/mass of the solution ] x 100

$=\frac{11}{550} ( 100)\\ \\=2$

mass percentage =2%

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