Consider the following reactions:

The sum of the total number of atoms in one molecule each of (A), (B) and (C) is

Question

Consider the following reactions:

The sum of the total number of atoms in one molecule each of (A), (B) and (C) is

Canvas Classes · Accepted Answer

Step 1 — Identify compound A:
 chromyl chloride

A =  (chromyl chloride)
Atoms in : 1 Cr + 2 O + 2 Cl = 5 atoms

Step 2 — Identify compound B:

B =  (sodium chromate)
Atoms in : 2 Na + 1 Cr + 4 O = 7 atoms

Step 3 — Identify compound C:

Actually: , then 
C =  (chromium pentoxide / peroxochromate)
Atoms in : 1 Cr + 5 O = 6 atoms

Step 4 — Sum:

Answer: 18

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