Top answers

All subjects
GCSE

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) =...

JH
Answered by Joshua H. Chemistry tutor
31536 Views

What is the relative formula mass of CaCO3?

The relative formula mass (RFM) is simply just a sum of the atomic masses that make up the compound in question.

Ca = 40

C = 12

O = 16

RFM of CaC...

JH
Answered by Joshua H. Chemistry tutor
70275 Views

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?

There are two ways to work this out, one is a lot simpler than the other, I will post the simpler method here.

The relative formula mass of magnesium oxide, MgO (40), is just a sum of the...

JH
Answered by Joshua H. Chemistry tutor
75566 Views

"Guys like us, that work on ranches, are the loneliest guys in the world. They got no family. They don’t belong no place. . . " How true is this statement with regards to the relationships presented in Steinbeck's 'Of Mice and Men'

A question with a good degree of scope to discuss the dependent, almost symbiotic relationship between Lenny and George. The environment is one which perpetuates lonliness - the Great Depression, a foc...

FM
Answered by Freya M. English tutor
11007 Views

How do you translate an ablative absolute?

So ablative absolutes can seem scary because they sit there apart from the rest of the sentence, but they're actually super easy! Translating them isn't difficult at all.

They can be tran...

MW
Answered by Mabel W. Latin tutor
5239 Views

We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning