Topic Content:
- Relative Molecular Mass
The relative molecular mass of an element or a compound is the number of times the average mass of one molecule of it is heavier than one-twelfth the mass of one atom of carbon-12.
\(\scriptsize Relative \:Molecular \:Mass = \normalsize \frac{mass \: of \: 1 \: molecule \: of \: substance}{\frac{1}{12} \: \times \: mass \: of \: Carbon-12 } \)
The relative molecular mass of an element or compound is the sum of the relative atomic mass of the atoms in one molecule of that substance.
Example 6.5.1:
Calculate the relative molecular mass (RMM) of the following compounds.
(a) CaCO3 (b) HNO3 (c) KCl.
(Ca = 40, C = 12, O = 16, H = 1, N =14, K = 39, Cl = 35.5)
Solution:
(a) CaCO3
40 + 12 + (16 × 3)
You are viewing an excerpt of this Topic. Subscribe Now to get Full Access to ALL this Subject's Topics and Quizzes for this Term!
Click on the button "Subscribe Now" below for Full Access!
Subscribe Now
Note: If you have Already Subscribed and you are seeing this message, it means you are logged out. Please Log In using the Login Button Below to Carry on Studying!
Responses