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1. % p / p = peso soluto x 100 `````````````````` peso solución

preparar la solucion = n soluto + p solvente

p solución = 0.

892 g + 80 g = 80.

892 g

% p / p = 0.

892 g x 100 `````````````` 80.

892 g

%p / p = 1.

102 %

2.

Calcular peso soluto

p soluto = %p / p x p solución `````````````````````````` 100

p soluto = 5 g / g x 200 g `````````````````````` 100

p soluto = 10 g de KCl

3.

A) calcula p solucion = peso soluto x 100 ```````````````` % p / p

p solución = 20 g x 100 ```````` 40 g / g

p solución = 50 g

b) calcular peso del solvente (agua)

p solución = p soluto + peso solvente

p solvente = 50 g - 20 g = 30 g de solvente (agua)

3.

% p / v = p soluto x 100 ```````````` v solución

%p / v = 10 g x 100 ```````````` 500 mL

% p / v = 2 %

5.

Calcular masa soluto

%p / p = p soluto x 100 ```````````` p solución

p soluto = 1000 mL x 33 g / mL ```````````````````````````` 100

P soluto = 330 g de CuSO4.