Author Message

Newbie

Joined: 19 Dec 2019
Posts: 2

# Identifying chemical amount of Ions

Hi guys,
I need a step by step answer so I could apply it to other questions as well.

Calculate the chemical amount (moles) of potassium ions in 248.0 ml of a 0.1047 M solution of potassium phosphate?

Distinguished Member

Joined: 27 Sep 2017
Posts: 332
Location: Berlin, Germany
 The question is which potassium phosphat is meant. There 3 different ones available. Which ones? But general you calculate the moles of the 248 ml 0,1047 M . If you know the formula of the potassium phosphate, then multiply with the amount of K+

Newbie

Joined: 19 Dec 2019
Posts: 2
 could you please explain more? in my question I have the following instructions: The chemical amount of ions is determined from this value, adjusting for the number of ions for every formula unit ?

Distinguished Member

Joined: 27 Sep 2017
Posts: 332
Location: Berlin, Germany
 Step by Step Let say we have Dipottassiumhydrogen phosphate. First what is the formula of it? Second what is mole of your given number. 248 ml ; 0,1047 M How many pottassium moles does it correspond
 Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First
Page 1 of 1