if the temperature of 20.0 L of gas were increased to twice the initial value, while the pressure is held constant what would be
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Concentration of the solution (% mass) = 4%
<h3>Further explanation</h3><em>Rosa prepared a salt water solution by mixing 120 mg of water with 5 mg of common salt, what concentration is the solution she prepare?</em>
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mass solute=mass of salt=5 mg
mass solution :
mass solute(salt)+mass solvent(water) :