Respuesta :
Answer:
1. 4.5 g
2. 56.25 g
Step-by-step explanation:
3 % substance solution means :
3 g of dry substance is present in 100 g of solution.
By unitary method:
The weight of dry substance in 1 g of solution = [tex]\frac{3}{100}[/tex]
The weight of dry substance in 150 g of solution = [tex]\frac{3}{100}\times150=4.5\ g[/tex]
Let the weight of solution be w.
8 % solution contains 8 g dry substance in 100 g.
We have to find the weight of the solution(w) which contains 4.5 g of dry substance.
⇒ [tex]\frac{8}{100}\times w=4.5\\w=\frac{450}{8}=56.25\ g.[/tex]
Answer:
4.5g of dry substance
56.25g of an 8% solution
Step-by-step explanation:
