Resposta :
1 Litro -------------------- 40g
2 Litros --------------------x
x = 2L*40g/1L
******************
x = 80 gramas
******************
2 Litros --------------------x
x = 2L*40g/1L
******************
x = 80 gramas
******************
[tex]C= \frac{M}{V} [/tex]
[tex] 40= \frac{M}{2} [/tex]
40.M=2
M= [tex] \frac{40}{2} [/tex] = 20g
[tex] 40= \frac{M}{2} [/tex]
40.M=2
M= [tex] \frac{40}{2} [/tex] = 20g