Cl2 + 2NaOH = 2NaClO + H2O
1 2 2
0.0250 0.0500 0.0500
根據(jù)反應(yīng)式,可知?dú)錃夂吐葰夥磻?yīng)后,剩余的氯氣為0.0250 mol (此反應(yīng)消耗0,0500 mol NaOH)
HCl + NaOH = NaCl + H2O
1 1
0.250 0.250
H2 + Cl2 = 2HCl
1 1 2
0.125 0.125 0.250
100 mL 3.00 mol/L的NaOH溶液中含NaOH:0.100*3.00 = 0.300 mol
中和HCl用去NaOH：0.300 - 0.050 = 0.250 mol
氫氣和氯氣反應(yīng)生成0.250 molHCl,二者均為0.125 mol
開始時(shí)有氯氣：0.125+0.025 = 0.150 mol
所用氯氣和參加反應(yīng)的氫氣的物質(zhì)的量之比:0.150:0.125 = 6:5