What is a formula of Potassium Sulfate?

First, look at the Periodic Table. Potassium is in group 1 so has a +1 charge,  Li+

Sulphates always have a -2 charge, SO4 2-

Now combine two ions together so we can get a neutral compound. We have +1 charge on Li ion and -2 charge on SO4 ion. Therefore, we need two Li+ ions for one SO4 2-

Now the charges cancel out and we have a neutral salt Li2SO4

Laura B. A Level Chemistry tutor, A Level Maths tutor, A Level Russia...

3 weeks ago

Answered by Laura, an A Level Chemistry tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist


Marc L. A Level Chemistry tutor
View profile
£20 /hr

Marc L.

Degree: Chemistry (Masters) - Durham University

Subjects offered: Chemistry


“I'm enthusiastic because I love the wonder of chemistry, but I'm patient and understanding because I remember the drudgery of A-level. I'm compassionate and friendly as a tutor because that's what it takes to bridge the gap between the...”

PremiumUmamah Y. A Level Biology tutor, A Level Chemistry tutor, GCSE Maths ...
View profile
£24 /hr

Umamah Y.

Degree: Medicine (Bachelors) - Leeds University

Subjects offered: Chemistry, Maths+ 1 more


“Hello!I'm Umamah, a first year medical student at the University of Leeds.I have a love for the logic, research and experimentation underpinning scientific knowledge, and enjoyed GCSE and A level science tremendously for that reaso...”

PremiumVandan P. Mentoring -Oxbridge Preparation- tutor, A Level Physics tut...
View profile
£26 /hr

Vandan P.

Degree: Physical Natural Sciences (Bachelors) - Cambridge University

Subjects offered: Chemistry, Science+ 6 more

Further Mathematics
-Oxbridge Preparation-

“I am a second year undergraduate at Corpus Christi College Cambridge. I am studying Natural Sciences. In my first year I did Physics, Chemistry, Computer Science and Maths and passed with first class honours....”

About the author

Laura B. A Level Chemistry tutor, A Level Maths tutor, A Level Russia...
View profile
£20 /hr

Laura B.

Degree: Chemistry (Bachelors) - York University

Subjects offered: Chemistry, Russian+ 2 more

-Personal Statements-

“Hello! My name is Laura and I am very passionate about science! I am currently studying Chemistry with Biological and Medicinal Chemistry at University of York and I really hope that my passion about science will inspire you!  I am ve...”

You may also like...

Posts by Laura

Define the terms atomic number and mass number

What is a buffer solution? How to make a buffer solution?

What is a formula of Potassium Sulfate?

What is a rate of reaction? How can we calculate the rate of reaction?

Other A Level Chemistry questions

How do buffers work?

0.250 g of a hydrocarbon known to contain carbon, hydrogen and oxygen was subject to complete combustion and produced 0.3664 g of CO2 and 0.1500 g of H2O. What is the empirical formula of this hydrocarbon?

What is a chiral carbon?

Types of chemical bonds

View A Level Chemistry tutors


We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss