Question

Ce masa de hidrogen sulfurat,H2S, se obtine prin reactia a 4g de hidrogen cu sulful? Ce masa de sulf se consuma in reactia cu hidrogenul?

Answer 1

$H_{2}$ + S = $H_{2}S$
4g H ......... x g S .......... y g $H_{2}S$
2g H ....... 32 g S ........ 34 g $H_{2}S$
=> x = ( 4 * 32 ) / 2 = 64 g S
y = ( 4 * 34 ) / 2 = 68 g $H_{2}S$