Question

Khối lượng HCl có trong 150g dd HCl 20% là ?

Answer 1

\(m_{HCl}=\dfrac{150.20}{100}=30\left(g\right)\)

Answer 2

m_HCl = \(\dfrac{150.20}{100}\) = 30 (g)

Answer 3

m_HCl = \(\dfrac{150.20\%}{100\%}\) = 30 (g)

Answer 4

\(m_{HCl}=\dfrac{150.20\%}{100\%}=30\left(g\right)\)

Học tốt!