Question
A) whats the reaction for aqeuous lead (II) nitrate reacting with sodium chromate? b) what's the...
a) whats the reaction for aqeuous lead (II) nitrate reacting with sodium chromate?
b) what's the color and formula for the colored product formed?
c) how could the production of a colored product be used to find the amount of lead within the water?
Answers
We will answer this question one by one
First we have 2 chemicals
01. Lead nitrate - Pb(NO3)2
02. Sodium chromate - Na2CrO4
now
Question a)
Reaction
Pb(NO3)2 + Na2CrO4 ---> PbCrO4 + 2 NaNO3
02. Color and formula of the product formed
As seen from the reaction the product formed is
Lead Chromate
Formula - PbCrO4
Color - yellow
C)
The amount of lead in the water can be detected by the same reaction shown above
The yellow colour formed can tell us about the concentration of Lead
For this we have to draw a standard curve and plot our given reading to find the concentration
I hope this helps. If you have any query or want more detailed explanation, feel free to ask in the comments section below.
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