Question

do it fast
Subject: science
class 9 çh 2
question​

Answer 1

Answer:

a.percentage of solution=5

mass of solution=250g

percentage of solution=mass of solute/ mass of solution×100

mass of solute/250×100

=5×250/100=12.5g

b.mass of solute=65g

mass of solvent=435g

mass of solution=500g(435+65)

concentration=(65/500)×100=13%