Question

Помогите пж с химией 1. дано: 2.дано H2SO4 NaOH ---------- ---------- w(H)-? w(Na)-? w(S)-? w(O)-? w(O)-? w(H)-?

Answer 1

Mr(H₂SO₄)=98 г\моль
w(H) = $\frac{2}{98}*100$%=2%
w(S)=$\frac{32}{98}*100$%=32%
w(O)=$\frac{64}{98}*100$%= 65%

Mr(NaOH)=23+16+1=40г\моль
w(Na)=$\frac{23}{40}*100$%= 57,5%
w(O)=$\frac{16}{40}*100$%= 40%
w(H)=$\frac{1}{40} *100$%=2,5%