Question

The element a at wt =75 and b at weight =32 combine to form a compound x if 3 mol of b combine with 2 mol of A to give 1 mol of X, the weight of 5 mol of x is???

Answer 1

5 mole of X contains

5×3 moles of b

5×2 moles of a

so weight of 5 mole of X is
15 × wt of b+ 10 × wt of a
15×32+10×75
480+750
1230 g

thanks

UDIT:)

Answer 2

Answer: Weight of $5$ mole of X is $1230 g$.

Explanation:

Given: Atomic weight of A $= 75 g$

Atomic weight of B $= 32 g$

$3$ moles of B combine with $2$ moles of A to form $1$ mole of X as:

$2 A + 3 B$ → $X$

Or $A_{2} B_{3}$ → $X$

Therefore molecular weight of X $= 2$ * Atomic weight of A $+3$ * Atomic weight of B = $2 * 75 g + 3 * 32 g = 246 g$

$1$ mole of X $= 246 g$

∴ $5$ mole of X $= 246 * 5 = 1230 g$

Weight of $5$ mole of X is $1230 g$

# SPJ2