Ответ: СH3COH+Ag2O=CH3COOH+2Ag;
Mr(CH3COH)=44г;
Mr(2Ag)=108г*2=216г;
44г CH3COH —-216г Ag;
28г CH3COH —xг Ag;
x=28г*216г/44г=137.45г Ag