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 CaCO3 = 40 + 12 + (16 x 3) = 100
Note we have three oxygens so we need to multiply the atomic mass by three before adding the mass of calcium and carbon.
JH
Related Chemistry GCSE answers
All answers ▸Metals have high melting points. Explain, in terms of their structure and bonding, why metals have high melting points
Explain why chlorine is more reactive than iodine(3 marks)
In the labratory you are given 1.5g of butyl butanoate ester C8H16O2. (i) Draw the functional group of this compound. (ii) What is the emperical formula of the compound. (iii) What is the molar mass of the compound? (iv) How many moles were you given
What is the difference between an alkane and and alkene