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19.01.2020 •
Chemistry
Sam prepares a solution of sodium chloride with a concentration of 8 g/dm³. if he only used 2g of sodium chloride, what volume of water did he dissolve it in, in cm³?
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Ответ:
The volume of water for 2 g sodium chloride with concentration of
has been 
.
Concentration has been defined as the mass of solute with respect to the solution. The concentration has been expressed in various ways such as density, molarity, molality, etc.
The concentration of given solution has been
. It has been stating that 8 gram of sample has been present in 1 cubic decimeter solution.
Volume of waterThe volume of water has been obtained for 2 gram of sodium chloride solution as:
The volume of water for 2 g of solution has been 0.25 cubic decimeter.
The decimeter cube has been given as in terms of cubic centimeter as:
The volume of water for 2 g sodium chloride with concentration of
has been 
.
Learn more about concentration, here:
link
Ответ:
The volume of water he dissolved the solute is 250 cubic centimeter.
Explanation:
Concentration = mass of solute in g / volume in dm^3
The concentration of a solution is defined as the ratio of mass of solute in grams to the volume of water in dm^3.
If concentration of a solution = 8 g/dm^3.
mass of solute =2 g.
Volume of a water = 2 / 8 = 0.25 dm^3. (or) 250 cubic centimeter.
Ответ:
It is the third option.
Explanation:
Codominance is when both traits can be seen.