The percentage of metal in two metal oxides, A and B is 74.2% and 59%, respectively. Show that thelaw of multiple proportions is obeyed.

The percentage of metal in two metal oxides, A and B is 74.2% and 59%,

1.	The percentage of metal in two metal oxides, A and B is 74.2% and 59%, respectively. Show that thelaw of multiple proportions is obeyed.
Answer» Solution :`{:("Metal Oxides",,"Percentage of Metal",,"Percentage of OXYGEN"),("A",,"74.2",,"25.8"),("B",,"59",,"41"):}` In A, 74.2g ofmetal combines with 25.8g OFOXYGEN ? combines with 1 g of oxygen ` = (74.2g)/(25.8 g) = 2.87` g In B, 59g of metal combines with 41g ofoxygen ? combines with 1 g of oxygen ` =59/41 g = 1.43` g `:.` The ratio by WEIGHT of metal combining with fixedmass of oxygen in A andB ` = 2.87 : 1.43 = 2 : 1` Hence, law of multiple proportions is OBEYED.