use the following balanced equation to answer the questions: 4k + o₂ → 2k₂o there are 4 moles of k present…

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?

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?

Answer

Explanation:

Step1: Recall mass - mole formula

The formula to calculate mass ($m$) from moles ($n$) and molar mass ($M$) is $m = n\times M$.

Step2: Substitute given values

We are given that $n = 4\ mol$ (moles of potassium) and $M=39.10\ g/mol$ (molar mass of potassium). So, $m=4\ mol\times39.10\ g/mol$.

Step3: Calculate the mass

$m = 156.4\ g$.

Answer:

$156.4\ g$