Question

msol =160g
w ( ) = 4%

pls help ​

Answer 1

C = md/ms • 100
4% înseamnă 4/100 sau 1/25
1/25 = md•100/160
md = 8/125 = 0,064 g

Answer 2

Răspuns:

Explicație:

$\bf 4\% = \dfrac{4}{100}$

$\red{\boxed{\bf ~c = \dfrac{md}{ms}\cdot100~ } }$

$\bf \dfrac{4}{100} =\dfrac{md}{160} \cdot100$

$\bf \dfrac{4}{100} =\dfrac{100md}{160} \implies 100 \cdot 100~md=4 \cdot 160$

$\bf md=\dfrac{\not4 \cdot 16\not0}{\not100 \cdot 10\not0} \implies md= \dfrac{1 \cdot 16}{25 \cdot 10}$

$\pink{\bf \underline{md=0,064}}$