MYTUTOR SUBJECT ANSWERS

482 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...

11 months ago

Answered by Joshua, a GCSE Chemistry tutor with MyTutor


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

196 SUBJECT SPECIALISTS

£18 /hr

Haider M.

Degree: Medicine (Bachelors) - Exeter University

Subjects offered: Chemistry, Physics+ 7 more

Chemistry
Physics
Maths
Extended Project Qualification
Biology
.UKCAT.
.BMAT (BioMedical Admissions)
-Personal Statements-
-Medical School Preparation-

“A bit about me I am currently in my 2nd year of medical school at the University of Exeter. I really enjoy learning about science, especially the science of health disease, and would love nothing more than to pass down this knowledge ...”

MyTutor guarantee

£18 /hr

Luke C.

Degree: Biological Sciences with a year in professional placement (Bachelors) - Exeter University

Subjects offered: Chemistry, Physics+ 2 more

Chemistry
Physics
Maths
Biology

“My greatest passion is for biology, but I have always enjoyed studying chemistry and mathematics too. Studying these subjects has supported me during my time so far at Exeter University, even though I am still in my first year of stud...”

£18 /hr

Balraj D.

Degree: PPE (Philsophy, Politics & Economics) (Bachelors) - Warwick University

Subjects offered: Chemistry, Philosophy+ 4 more

Chemistry
Philosophy
Maths
French
Economics
.TSA. Oxford.

“Hi! I'm Bal! Currently studying Philosophy, Politics and Economics in my first year at university and really enjoying myself. I got a score of 41 in my IB Diploma, 11 points above the world average. I also gained 10A*s in my GCSEs. In ...”

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

What is the difference between covalent compounds and ionic compounds?

Why are elements of group 0 chemically inert?

Balance this equation: C6H12O6 + _O2 --> _CO2 + _H2O

What is the volume of carbon dioxide released at room temperature and pressure when 6.2 g of copper carbonate reacts with excess dilute sulfuric acid?

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