I know it is far late but the atom number remains the same
X=240 g NaCl salt dissolves in solution.
Example: If we add 68 g sugar and 272 g water to 160 g solution having concentration 20 %, find final concentration of this solution.
Solution:
Mass of solution is 160 g before addition sugar and water.
100 g solution includes 20 g sugar
160 g solution includes X g sugar
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X=32 g sugar
Mass of solute after addition=32 + 68=100 g sugar
Mass of solution after addition=272 +68 + 160=500 g
500 g solution includes 100 g sugar
100 g solution includes X g sugar
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X= 20 % is concentration of final solution.
The physical property that is similar to glass, water, dry ice , plastic wrap and air is ; Color ( colorless substances )
All the listed elements share one physical property which is in their color. glass, water, dry ice, plastic wrap and air are all colorless in nature.
Physical properties of elements/substances are measurable or observable properties of an element that does not affect the chemical composition of the element/substance. physical properties describes the physical appearance of a substance.
Hence we can conclude that the physical property that is similar to glass, water, dry ice, plastic wrap and air is ; Color
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