Question

A 50.0 mL volumetric flask filled with aqueous solution of
hydrogen peroxide has a total mass of 88.5 g. The mass of the
volumetric flask is 16.5 g. What is the density of the aqueous
solution of hydrogen peroxide?
_g/mL

Answer 1

Answer:

1.44g/mL

Explanation:

Data obtained from the question include:

Volume of volumetric flask = 50mL

Mass of volumetric flask + hydrogen peroxide = 88.5g

Mass of volumetric flask = 16.5g

Mass of Hydrogen peroxide = 88.5 — 16.5 = 72g

The density of aqueous hydrogen peroxide can be obtained as shown below:

Mass of Hydrogen peroxide = 72g

Volume of Hydrogen peroxide = 50mL

Density =?

Density = Mass /volume

Density = 72/50

Density = 1.44g/mL

Answer 2

We have that the density of the aqueous  solution of hydrogen peroxide is

$\rho=0.565g/mL$

 

From the Question we are told that

Volume $v=50mL$

Mass $m=88.5g$

Mass of the  volumetric flask 16.5 g.

Generally the equation for density  is mathematically given as

$\rho=\frac{v}{m}\\\\\rho=\frac{50}{88.5}$

$\rho=0.565g/mL$

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