What is the concentration in molarity of an aqueous solution which contains 5.21% by mass ethylene glycol (mm=62.07g/mol)? the density of the solution is 1.04g/ml.

the concentration of the ethylene glycol in the solution is 0.87 M.

From the question given above, the following data were obtained:

Percentage by mass of ethylene glycol = 5.21%

Molar mass of ethylene glycol = 62.07 g/mol

Density = 1.04 g/mL

Next, we shall mass ethylene glycol in the solution. This can be obtained as follow:

Percentage by mass of ethylene glycol = 5.21%

Therefore,

NOTE: the mass of the solution is assume to be 1 g

Next, we shall determine the number of mole in 0.0521 g of ethylene glycol.

Mass of ethylene glycol = 0.0521 g

Molar mass of ethylene glycol = 62.07 g/mol

Mole = mass / molar mass

Mole of ethylene glycol = 0.0521 / 62.07

Next, we shall determine the volume of the solution.

Mass of solution = 1 g

Density of solution = 1.04 g/mL

Density = mass /volume

1.04 = 1 / Volume

Cross multiply

1.04 × Volume = 1

Divide both side by 1.04

Volume = 1 / 1.04

Volume of solution = 0.962 mL

Volume of solution = 0.962 / 1000

Finally, we shall determine the concentration of the ethylene glycol in the solution.

Mole of ethylene glycol = 8.39×10¯⁴ mole

Volume of solution = 9.62×10¯⁴ L

Concentration = mole / Volume

Concentration of ethylene glycol = 8.39×10¯⁴ / 9.62×10¯⁴

Therefore, the concentration of the ethylene glycol in the solution is 0.87 M

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the term hydride is commonly named after binary compounds that hydrogen forms with other elements of the periodic table. hydride compounds in general form with almost any element, except a few noble gases. the trends and properties vary according to the type of intermolecular force that bonds the elements together, the temperature, its molecular masses, and other components. hydrides are classified into three major groups, depending on what elements the hydrogen bonds to. the three major groups are covalent, ionic, and metallic hydrides. formally, hydride is known as the negative ion of a hydrogen, h-, also called a hydride ion. because of this negative charge, hydrides have reducing, or basic properties. its special characteristics will be further discussed.

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