Two element X (atomic mass = 75) and Y (atomic mass = 16) combine to give a compound having 75.8% of X. The formula of the compound is

Question

Two element X (atomic mass = 75) and Y (atomic mass = 16) combine to give a compound having 75.8% of X. The formula of the compound is (A) XY (B) X2Y (C) X2Y2 (D) X2Y3

Tardigrade Admin · Accepted Answer

Element Atomic weight % Ratio Simplest ratio X 75 75.8 (75.8/75)=1 2 Y 16 24.2 (24.2/16)=1.5 3 X2Y3

Q. Two element X (atomic mass = 75) and Y (atomic mass = 16) combine to give a compound having 75.8% of X. The formula of the compound is

XY

$X_{2} Y$

$X_{2} Y_{2}$

$X_{2} Y_{3}$

Element

Atomic weight

%

Ratio

Simplest ratio

X

75

75.8

$\frac{75.8}{75} = 1$

2

Y

16

24.2

$\frac{24.2}{16} = 1.5$

3

$X_{2} Y_{3}$

Element	Atomic weight	%	Ratio	Simplest ratio
X	75	75.8	$\frac{75.8}{75} = 1$	2
Y	16	24.2	$\frac{24.2}{16} = 1.5$	3

Q. Two element X (atomic mass = 75) and Y (atomic mass = 16) combine to give a compound having 75.8% of X. The formula of the compound is

XY

X2​Y

X2​Y2​

X2​Y3​

Element Atomic weight % Ratio Simplest ratio X 75 75.8 7575.8​=1 2 Y 16 24.2 1624.2​=1.5 3 X2​Y3​

$X_{2} Y$

$X_{2} Y_{2}$

$X_{2} Y_{3}$

Element

Atomic weight

%

Ratio

Simplest ratio

X

75

75.8

$\frac{75.8}{75} = 1$

2

Y

16

24.2

$\frac{24.2}{16} = 1.5$

3

$X_{2} Y_{3}$