A solution contains 20g of solute in 180g of solvent. If ...
A solution contains 20g of solute in 180g of solvent. If the solvent is water, what is the concentration of the solution in terms of mass by mass percentage
11.%
22.2%
10%
20%
Correct answer is C
Mass of Solution = Mass of Solute + Mass of Solvent → 20g + 180g
: Mass of Solution = 200g
Mass Percent = \(\frac{Mass of Solute}{Mass of Solution} * 100%\)
Mass percent = \(\frac{20}{200} * 100%\)
Mass percent = 10%
What is the atomic number of Selenium? ...
The rate of chemical reaction of solids are not affected by ...
What is the atomic number of Gold? ...
The relationship between equilibrium constant and free energy change is represented as ...
The gas in air used by plants for photosynthesis is ...
The gas given off when NH4Cl is heated with an alkali is...
The gas that is most useful in protecting humans against solar marathon is ...
Which of the following ions is isoelectronic with neon? [3Li, 3F, 10Ne, 17CI,19K]...