(1)收集到CO2为_10g+100g-101.2g=8.8_克.Na2CO3+2HCl=2NaCl+H2O+CO2↑
73 44 x 8.8g73/x=44/8.8gx=14.6g
(2)所用稀盐酸中溶质的质量分数.14.6g/100g*100%=14.6%
(1)收集到CO2为_10g+100g-101.2g=8.8_克.Na2CO3+2HCl=2NaCl+H2O+CO2↑
73 44 x 8.8g73/x=44/8.8gx=14.6g
(2)所用稀盐酸中溶质的质量分数.14.6g/100g*100%=14.6%