Ответ:
1) w(O)=3*Ar(O)/Mr(HNO3)= 48/63=0.76
2) w(O)=5*Ar(O)/Mr(P2O5)= 80/142=0.56
3) w(O)=2*Ar(O)/Mr(Fe2O3)= 48/160=0.3
4) w(O)=Ar(O)/Mr(NaOH)= 16/40=0.4
Объяснение:
1) 76%
2) 83%
3) 30%
4) 40%
16*3/(1+14+16*3)*100=48/63*100=76%
16*5/(15+16*5)*100=83%
16*3/(2*56+16*3)*100=30%
16/(23+16+1)*100=40%
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Ответ:
1) w(O)=3*Ar(O)/Mr(HNO3)= 48/63=0.76
2) w(O)=5*Ar(O)/Mr(P2O5)= 80/142=0.56
3) w(O)=2*Ar(O)/Mr(Fe2O3)= 48/160=0.3
4) w(O)=Ar(O)/Mr(NaOH)= 16/40=0.4
Объяснение:
Ответ:
1) 76%
2) 83%
3) 30%
4) 40%
Объяснение:
16*3/(1+14+16*3)*100=48/63*100=76%
16*5/(15+16*5)*100=83%
16*3/(2*56+16*3)*100=30%
16/(23+16+1)*100=40%