An element A (at wt =75 ) and another element B (at. wt. =25 ) combine to form a compound. The compound contains 75 % A by weight. The formula of the compound will be-

Question

An element A (at wt =75 ) and another element B (at. wt. =25 ) combine to form a compound. The compound contains 75 % A by weight. The formula of the compound will be- (A) A 2 B (B) A3 B (C) AB 3 (D) AB

Tardigrade Admin · Accepted Answer

no. of moles of A =(75/75)=1 no. of moles of B =(25/25)=1 molecular formula AB

Q. An element $A$ (at $wt = 75$ ) and another element $B$ (at. wt. $= 25$ ) combine to form a compound. The compound contains $75%$ A by weight. The formula of the compound will be-

$A_{2} B$

$A_{3} B$

$A B_{3}$

$A B$

no. of moles of $A = \frac{75}{75} = 1$

no. of moles of $B = \frac{25}{25} = 1$

molecular formula $A B$

Q. An element A (at wt=75 ) and another element B (at. wt. =25 ) combine to form a compound. The compound contains 75% A by weight. The formula of the compound will be-

A2​B

A3​B

AB3​

AB