Question

H2CO4иCa(OH)2расчитать массовые доли

Answer 1

Mr (H2CO3)=62
W(H)=262×100%=3,23%
W(C)=1262×100%=19,35%
W(O)=4862×100%=77,42%
Mr(Ca(OH2)=74
W(Ca)=4074×100%=54,05%
W(O)=3274×100%=43,24%
W(H)=274×100%=2,70%