Question

2 K + Cl2 → 2 KCI How many grams of KCI (74.55 g/mol) is produced from 2.50 mol of K?

Answer 1

Answer:  186.3 g of $KCl$ will be produced from 2.50 mol of K

Explanation:

The balanced chemical reaction is:

$2K+Cl_2\rightarrow 2KCl$  

According to stoichiometry :

2 moles of K produce = 2 moles of $KCl$

Thus 2.50 moles of $K$ will produce=$\frac{2}{2}\times 2.50=2.50moles$  of $KCl$

Mass of $KCl=moles\times {\text {Molar mass}}=2.50moles\times 74.55g/mol=186.3g$

Thus 186.3 g of $KCl$ will be produced from 2.50 mol of K