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  • Calculate the percentage composition in terms of mass of solution abtained by mixing 400g of 25% soln and 300g of 30% of soln

Calculate the percentage composition in terms of mass of solution abtained by mixing 400g of 25% soln and 300g of 30% of soln?

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Mass of component in first solution = 25% of 400 gram  = 25*400/100 = 100 gram
Mass of component in second solution   = 30 % of 300 gram = 30*300/100 = 90 gram
 
Total mass of solution = 300+400 = 700 gram
Total mass of component  = 100+ 90  = 190 grams
 
Mass % of final solution     = mass of component * 100 / total mass
                                         =190*100/700  = 27.14%
Total of % is always 100
So % of water in solution = 100 – 27.14  = 72.85 % 
Posted by

Pankaj Sanodiya

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