第一步
HCl+NaOH=NaCl+H2O
m(HCl)=0.2000mol*23.04ml/1000*36.5g/mol=0.168192g
第二步
HCl+NaOH=NaCl+H2O
H3BO3+NaOH=NaBO2+2H2O
m(H3PO3)=(36.00ml-23.04ml)*0.2000mol/L/1000*61.83 g/mol =0.16026336g
注意硼酸是一元酸
所以
HCl :0.168g; H3BO3:0.160g
题主确定答案无误?
第一步
HCl+NaOH=NaCl+H2O
m(HCl)=0.2000mol*23.04ml/1000*36.5g/mol=0.168192g
第二步
HCl+NaOH=NaCl+H2O
H3BO3+NaOH=NaBO2+2H2O
m(H3PO3)=(36.00ml-23.04ml)*0.2000mol/L/1000*61.83 g/mol =0.16026336g
注意硼酸是一元酸
所以
HCl :0.168g; H3BO3:0.160g
题主确定答案无误?