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


Sagot :

Answer:  186.3 g of [tex]KCl[/tex] will be produced from 2.50 mol of K

Explanation:

The balanced chemical reaction is:

[tex]2K+Cl_2\rightarrow 2KCl[/tex]  

According to stoichiometry :

2 moles of K produce = 2 moles of [tex]KCl[/tex]

Thus 2.50 moles of [tex]K[/tex] will produce=[tex]\frac{2}{2}\times 2.50=2.50moles[/tex]  of [tex]KCl[/tex]

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

Thus 186.3 g of [tex]KCl[/tex] will be produced from 2.50 mol of K