产培首稿生二氧化碳气体:10g+90g-97.14g=2.86g
CaCO3+2HCl=CaCl2+H2O+CO2
100 44
x 2.86g
100/x=44/配孝芹闭2.86g
x=6.5g
6.5g/10g*100%=65%
少拍兆掉的物悔旁质是CO2 100-97.14=2.86g
caco3+2hcl====cacl2+h2o+co2
100 44
X 2.86g
X=6.5g 6.5/袭前租100=6.5%
CO2的质量为:100-97.14=2.86g
CaCO3+2HCl=CaCl2+H2O+CO2↑
100 44
X 2.86g
100:X=44:梁码清蚂2.86
X=6.5g
碳酸钙的质量分数为橡正哪:6.5/10=65%