[j1911199919]

這樣是對的還錯的，我的字有點醜喔==，拜託您們幫看ㄧ下。【我用計算機】

 

[bbbabab]

CuSO4.5H2O, MW=249.686
Cu, MW=63.546
http://www.webqc.org/molecular-weight-of-CuSO4*5H2O.html


1g=1000mg

1000mg/1L=1000ppm (CuSO4.5H2O)

1000/249.686*63.546 = 254.5 ppm (Cu)

 

[j1911199919]

CuSO4.5H2O, MW=249.686
Cu, MW=63.546
http://www.webqc.org/molecular-weight-of-CuSO4*5H2O.html


1g=1000mg

1000mg/1L=1000ppm (CuSO4.5H2O)

1000/249.686*63.546 = 254.5 ppm (Cu)

謝謝高手！！！我忘了扣四個氧加上多ㄧ位。