If x g of A (atomic mass 50 ) contains n atoms, how many atoms are there in 20 x g of elements B: (at wt. 100)

Question

If x g of A (atomic mass 50 ) contains n atoms, how many atoms are there in 20 x g of elements B: (at wt. 100) (A) n (B) 10 n (C) 20 n  (D) n / 10

Tardigrade Admin · Accepted Answer

For A 50 g A would contain atoms = N A x g A would contain atoms =( N A /50) × x g = n atoms For B 100 g B would contains atoms = N A 20 xg B would contains atoms =( N A /100) × 20 xg =( N A /5) x ( N A /50) x corresponds to atoms = n ( N A /5) x corresponds to atoms =( n /( N A x)50) × ( N A /5) x =( n × 50/ N A x) × ( N A /5) x =10 n

Q. If $x g$ of $A$ (atomic mass 50 ) contains $n$ atoms, how many atoms are there in $20 x$ g of elements B: (at wt. 100)

$n$

$10 n$

$20 n$

$n /10$

Q. If xg of A (atomic mass 50 ) contains n atoms, how many atoms are there in 20x g of elements B: (at wt. 100)

n

10n

20n

n/10

Q. If $x g$ of $A$ (atomic mass 50 ) contains $n$ atoms, how many atoms are there in $20 x$ g of elements B: (at wt. 100)

$n$

$10 n$

$20 n$

$n /10$