cau a nhu nay nheviet so do phan ung ra Zn >> Zn2+ +2e0.25 0.5Ag+>>Ag +1e0.2 0.2 Cu2+>> Cu +2eX 2xta co 2x + 0.2 = 0.5 tim x=0.15 m cry= 0.15*64+0.2*108=31.2cau b tuong tu nhu cau a nhung Fe>>Fe2+ thoi nhedd sau con cu2+ nua Cu2+ du = 0.1fe2+ tao thanh la 0.2
cau a nhu nay nheviet so do phan ung ra Zn >> Zn2+ +2e0.25 0.5Ag+>>Ag +1e0.2 0.2 Cu2+>> Cu +2eX 2xta co 2x + 0.2 = 0.5 tim x=0.15 m cry= 0.15*64+0.2*108=31.8cau b tuong tu nhu cau a nhung Fe>>Fe2+ thoi nhedd sau con cu2+ nua Cu2+ du = 0.1fe2+ tao thanh la 0.2
cau a nhu nay nheviet so do phan ung ra Zn >> Zn2+ +2e0.25 0.5Ag+>>Ag +1e0.2 0.2 Cu2+>> Cu +2eX 2xta co 2x + 0.2 = 0.5 tim x=0.15 m cry= 0.15*64+0.2*108=31.
2cau b tuong tu nhu cau a nhung Fe>>Fe2+ thoi nhedd sau con cu2+ nua Cu2+ du = 0.1fe2+ tao thanh la 0.2