Рассчитать молярную массу вещества ,если известно что его масса 49г и количество вещества составляет 0,5 моль.

M=m/n ; 49/0,5=98г/моль (это серная кислота)

№1 2ch4=[t,p]=c2h2+3h2 c2h2 + h2o=[hg²⁺]= ch3-cho 3ch3-cho+2kmno4+h2so4=3ch3-cooh+k2so4+mno2+h2o h3c-cooh+cl2=[hv]= cl-ch2-cooh+hcl 2h2o=[ток]=2h2+o2 n2+3h2=[кат,t]=2nh3 cl-ch2-cooh+2nh3=h2n-ch2-cooh+nh4cl#2 1) 2h2o=[ток]=2h2+o2 2сн4+o2=[pbo/al2o3]=c2h4+2h2o c2h4+h2o=c2h5oh 2) 2h2o=[ток]=2h2+o2 2сh4=c2h2+3h2 c2h2+h2o=[hg²⁺]=ch3-cho ch3-cho+h2=ch3-ch2-oh 3) не могу придумать #3 сh4+2o2=co2+2h2o 6co2+6h2o=c6h12o6+6o2 c6h12o6=2ch3 ch(oh)cooh  #4 а)ch4+cl2=[hv]=ch3cl+hcl 2ch3cl+2na=2nacl+ch3-ch3 с2h6=[t,p]= ch2=ch2 2ch4+5o2=2co+4h2o h2o+co=h2+co2 ch2=ch2+h2o+co2=ch3ch2cho б)ch4+cl2=[hv]=ch3cl+hcl 2ch3cl+2na=2nacl+ch3-ch3 c2h6+cl2=[hv]=c2h5cl+hcl 3c2h5cl+6na+3ch3cl=c4h10+c2h6+c3h8+6nacl с3h8=[t,p]=  ch3-ch=ch2 ch3-ch=ch2+h2o=ch3-ch(oh)-ch3 ch3-ch(oh)-ch3=ch3-c(o)-ch3+h2 #5 а)ch4+cl2=[hv]=ch3cl+hcl 2ch3cl+2na=2nacl+ch3-ch3 с2h6=[t,p]= ch2=ch2 2ch4+5o2=2co+4h2o h2o+co=h2+co2 ch2=ch2+h2o+co2=ch3ch2cho ch3ch2cho+h2=ch3ch2ch2(oh)б)ch4+cl2=[hv]=ch3cl+hcl 2ch3cl+2na=2nacl+ch3-ch3 c2h6+cl2=[hv]=c2h5cl+hcl 3c2h5cl+6na+3ch3cl=c4h10+c2h6+c3h8+6nacl с3h8=[t,p]=  ch3-ch=ch2 ch3-ch=ch2+h2o=ch3-ch(oh)-ch3 в)ch4+cl2=[hv]=ch3cl+hcl 2ch3cl+2na=2nacl+ch3-ch3 c2h6+cl2=[hv]=c2h5cl+hcl 3c2h5cl+6na+3ch3cl=c4h10+c2h6+c3h8+6nacl с3h8=[t,p]=  ch3-ch=ch2 2na+2h2o=2naoh+h2 ch3-ch2cl-ch2cl+2naoh=[h2o]=2nacl+ch3-ch2(oh)-ch2(oh) #6 2ch4+5o2=2co+4h2o h2o+co=h2+co2 сo+2h2=ch3oh 2ch4=[t,p]=c2h2+3h2 c2h2+cl2=ch2cl-ch2cl 2na+2h2o=2naoh+h2 ch2cl-ch2cl+2naoh=[h2o]=ch2(oh)-ch2(oh)+2nacl ch2(oh)-ch2(oh)+2o2=[t]=2h2o+hooc-cooh hooc-cooh+2ch3oh=[h2so4]=2h2o+ch3ooc-cooch3 #7 2ch4=[t,p]=c2h2+3h2 3c2h2=[cакт]=c6h6 c6h6+cl2=c6h5cl+hcl 2na+2h2o=2naoh+h2 c6h5cl+naoh=nacl+c6h5oh 2ch4+5o2=2co+4h2o h2o+co=h2+co2 сo+2h2=ch3oh c6h5oh+ch3oh=[t]=c6h5-o-ch3+h2o #8 2ch4+5o2=2co+4h2o h2o+co=h2+co2 сo+2h2=ch3oh ch4+cl2=[hv]=ch3cl+hcl 2ch3cl+2na=2nacl+c2h6 c2h6=[t,p]=ch2=ch2+h2 ch2=ch2+h2o=c2h5oh c2h5oh+ch3oh=h2o+c2h5-o-ch3 #9 2ch4=[t,p]=c2h2+3h2 c2h2+cl2=ch2cl-ch2cl 2na+2h2o=2naoh+h2 ch2cl-ch2cl+2naoh=[h2o]=ch2(oh)-ch2(oh)+2nacl ch2(oh)-ch2(oh)+2o2=[t]=2h2o+hooc-cooh hooc-cooh+2pcl5=cloc-cocl+2hcl+2pocl3 #10 2сн4+3о2=2нсоон+2н2 о 2сн4+o2=[pbo/al2o3]=c2h4+2h2oc2h4+h2o=c2h5oh hcooh+c2h5oh=[h2so4]=hcooc2h5+h2o в [] написаны условия