A compound made of two elements A and B are found to contain 25% A (at. mass 12.5) and 75% B (at. mass 37.5). The simplest formula of the compound is

Question

A compound made of two elements A and B are found to contain 25% A (at. mass 12.5) and 75% B (at. mass 37.5). The simplest formula of the compound is (A) AB (B) AB2 (C) AB3 (D) A3B

Tardigrade Admin · Accepted Answer

Element % At.mass ( %/At. mass) Simplest ratio A 25 12.5 (25/12.5)=2 1 B 75 37.5 (75/37.5)=2 1

Element	$%$	At.mass	$\frac{%}{A t . ma ss}$	Simplest ratio
A	$25$	$12.5$	$\frac{25}{12.5} = 2$	$1$
B	75	37.5	$\frac{75}{37.5} = 2$	1

Q. A compound made of two elements A and B are found to contain 25% A (at. mass 12.5) and 75% B (at. mass 37.5). The simplest formula of the compound is

AB

$A B_{2}$

$A B_{3}$

$A_{3} B$

Element $%$ At.mass $\frac{%}{A t . ma ss}$ Simplest ratio

A $25$ $12.5$ $\frac{25}{12.5} = 2$ $1$

B 75 37.5 $\frac{75}{37.5} = 2$ 1

Q. A compound made of two elements A and B are found to contain 25% A (at. mass 12.5) and 75% B (at. mass 37.5). The simplest formula of the compound is

AB

AB2​

AB3​

A3​B

Element % At.mass At.mass%​ Simplest ratio A 25 12.5 12.525​=2 1 B 75 37.5 37.575​=2 1

$A B_{2}$

$A B_{3}$

$A_{3} B$

Element $%$ At.mass $\frac{%}{A t . ma ss}$ Simplest ratio

A $25$ $12.5$ $\frac{25}{12.5} = 2$ $1$

B 75 37.5 $\frac{75}{37.5} = 2$ 1