\(a,C\%_{NaCl}=\dfrac{10}{10+90}.100\%=10\%\\ b,C\%_{NaCl}=\dfrac{10}{10+90+150}.100\%=6,67\%\)
Đúng 2
Bình luận (0)
\(a,C\%_{NaCl}=\dfrac{10}{10+90}.100\%=10\%\\ b,C\%_{NaCl}=\dfrac{10}{10+90+150}.100\%=6,67\%\)