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Answer: The final concentration of a solution is 0.350 M
Explanation:
According to the dilution law,
where,
= concentration of concentrated acid solution = 12.0 M
= volume of concentrated acid solution = 35.0 ml
= concentration of diluted acid solution= ?
= volume of another acid solution= 1.20 L = 1200 ml
( 1L=1000ml)
Putting in the values:
The final concentration of a solution prepared by diluting 35.0 mL of 12.0 M HCl to a final volume of 1.20 L is 0.350 M
Explanation:
The given data is:
The mass% of a solution is 7.
Mass of solution =450g
The mass of salt required can be calculated as shown below:
Substitute the given values in this formula to get the mass of solute that is salt:
Mass of salt =31.5g
Mass of solvent that is water = 450g-31.5g=418.5g