MYTUTOR SUBJECT ANSWERS

402 views

The relative formula mass of CaO is 56 and the relative formula mass of CO2 is 44. What is the mass of CaO that can be obtained from 200 g of CaCO3. CaO3 -> CaO + CO2

We are given the relative formula mass (RFM) of CaO and CO2, we should therefore calculate the RFM of CaO3:

RFM of CaCO3 = 40 + 12 + (16 x 3) = 100

If we look at the reaction in the question, we can see one CaCO3 goes to one CaO and one CO2.

Effectively, in 200 g we have 2 lots of CaCO3, therefore we can make 2 lots of CaO and two lots of CO2.

Therefore we can make 2 x 56 g = 112 g of CaO from 200g of CaCO3.

Joshua H. GCSE Chemistry tutor, A Level Chemistry tutor, IB Chemistry...

10 months ago

Answered by Joshua, a GCSE Chemistry tutor with MyTutor


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

168 SUBJECT SPECIALISTS

£30 /hr

Jacan C.

Degree: Theoretical Physics (Masters) - York University

Subjects offered: Chemistry, Science+ 3 more

Chemistry
Science
Physics
Maths
Further Mathematics

“Hi, my name is Jacan. I am a Theoretical Physics third year at the University of York. I have had a real excitement for gaining an understanding in science at all levels through my education. This was, however, not always facilitated...”

£18 /hr

Dharani Y.

Degree: Medicine (Bachelors) - Kings, London University

Subjects offered: Chemistry, Science+ 4 more

Chemistry
Science
Maths
Biology
-Personal Statements-
-Medical School Preparation-

“A little bit about me: Hi, I’m Dharani! I am a medical student at King’s College London. I have some experience in mentoring as I used to help younger students on a one-to-one basis at school during classes. The idea of being able to ...”

MyTutor guarantee

£20 /hr

Lauren G.

Degree: Biosciences (Masters) - Durham University

Subjects offered: Chemistry, Maths+ 1 more

Chemistry
Maths
Biology

“Hi, I'm Lauren, and I am a second year Biosciences undergraduate at Durham University. I'm passionate about science, and I would love to help out anyone who is struggling with A-Level Biology, or GCSE Biology, Chemistry or Maths.”

About the author

Joshua H.

Currently unavailable: for regular students

Degree: Chemistry (Masters) - Sheffield University

Subjects offered: Chemistry, -Personal Statements-

Chemistry
-Personal Statements-

“Hello everyone!I am currently in my fourth and final year of a masters degree in chemistry at the University of Sheffield.I am here to help you with any problems you may have in chemistry, at any levels. University friends often co...”

MyTutor guarantee

You may also like...

Posts by Joshua

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?

1.5 g of hydrocarbon undergoes complete combustion to give 4.4 g of CO2 and 2.7 g of H2O. Given this data, what is the empirical formula of this hydrocarbon?

24 g of Magnesium reacts with 16 g of Oxygen to produce 40 g of magnesium oxide. What mass of magnesium would you need to produce 10 g of magnesium oxide?

The relative formula mass of CaO is 56 and the relative formula mass of CO2 is 44. What is the mass of CaO that can be obtained from 200 g of CaCO3. CaO3 -> CaO + CO2

Other GCSE Chemistry questions

(GCSE Chemistry) How do I work out the electronic configuration of an atom?

Why don't atoms have an overall charge?

What is activation energy?

Explain the physical properties of metals

View GCSE Chemistry tutors

Cookies:

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

mtw:mercury1:status:ok