Question

4. A sauce is made by mixing four components. Il 25 grams of the sauce contains 13.3 grams of
component A, 6,6 grams of component 1, 3,3 grams of component C, and remaining amount of
component D. Find the percentage by mass of component D in this mixture, Round off your answer
to two decimal places.​

Answer 1

Answer:

1.80gms

Step-by-step explanation:

25-13.3-6.6-3.3=1.8gms

Answer 2

Which mode of expressing concentration is independent of temperature?

The terms which includes volume will be temperature dependent otherwise all are temperature independent as,

Molality=

molar mass of solue × mass of solvent

mass of solute × 1000

, i.e., independent of temperature.

Mole fraction : The ratio of the number of moles of one component to the total number of all the components present in the solution, is called the mole fraction of that component.

Percentage by mass : The number of grams of solute dissolved in one gram of solution is called mass fraction of the solute.

So, all are temperature independent