Question

hãy tính nồng độ mol của dd khi cho 400g CuSO4 trong 400ml dd CuSO4

Answer 1

\(n_{CuSO_4}=\dfrac{400}{160}=2,5\left(mol\right)\)

\(400ml=0,4\left(l\right)\)

\(C_{M_{CuSO_4}}=\dfrac{2,5}{0,4}=6,25\left(M\right)\)

Answer 2

\(n_{CuSO_4}=\dfrac{400}{160}=2,5\left(mol\right)\\ C_M=\dfrac{2,5}{0,4}=6,25M\)

Answer 3

\(400ml=0,4l\)

\(C_{M_{CuSO_4}}=\dfrac{400:160}{0,4}=6,25\left(M\right)\)