How many grams of potassium chloride must decompose to produce 69.9 milliliters of potassium metal, if the density of potassium is 1.78 g/mL? Show all steps of your calculation as well as the final answer.

KCl → K + Cl2

@aaronq

Question

How many grams of potassium chloride must decompose to produce 69.9 milliliters of potassium metal, if the density of potassium is 1.78 g/mL? Show all steps of your calculation as well as the final answer. 

KCl → K + Cl2

@aaronq

aaronq · Answer

This problem is essentially the same as the other one.

1. Find mass of K (using volume and density given), then convert mass to moles.

2. Find moles of KCl. Set up ratio of moles of K to moles of KCl and their coefficients.

3. Convert moles of KCl to mass.

anonymous · Answer

Okay I will try then tell you what I get @aaronq

aaronq · Answer

If you post the individual steps, i will check it.