Question

use the following balanced equation to answer the questions: 4k + o₂ → 2k₂o there are 4 moles of k present. the molar mass of potassium is 39.10 g/mol. what mass of potassium is present?

Explanation:

Step1: Recall the formula for mass calculation

The formula for mass \(m\) is \(m = n\times M\), where \(n\) is the number of moles and \(M\) is the molar mass.

Step2: Substitute the given values

Given \(n = 4\space mol\) (moles of \(K\)) and \(M=39.10\space g/mol\) (molar mass of \(K\)).
Substitute into the formula: \(m=4\space mol\times39.10\space g/mol\).

Step3: Calculate the mass

\(m = 156.4\space g\)

Answer:

\(156.4\space g\)