4. Given the following equation: 2 K + Cl2 --> 2 KCl

How many grams of KCl are produced from 2.50 g of K?

I've been trying but I just can't understand how to solve this. Very sorry.

Guest Nov 8, 2018

#1**0 **

Each two mole of K used results in two mole of KCl....

K mole wt 39.0983 gm/mole

2.5 gm is 2.5 gm/ 39.0983 gm/mole = .063955 mole of K

This will produce the same number of moles of KCl

KCl mole weight = 39.0983 + 35.45 gm = 74.5483 gm

.063955 mole x 74.5483 gm/mole = 4.768 gm of KCl

ElectricPavlov Nov 8, 2018