Question
Asked Oct 18, 2019
1- Determine the concentration of a solution prepared by diluting 25.0 mL ofa stock 0.188
M Ca(NO3)2 solution to 150.0 mL
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1- Determine the concentration of a solution prepared by diluting 25.0 mL ofa stock 0.188 M Ca(NO3)2 solution to 150.0 mL

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Expert Answer

Step 1

Given

Volume of the solution = 25.0ml

Molarity of the solution = 0.188M

New volume of the solution after dilution = 150.0ml

Step 2

No of moles of the solution

no of moles-volumexmolarity
25
-L 0.188mol/L
1000
=0.0047mol
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no of moles-volumexmolarity 25 -L 0.188mol/L 1000 =0.0047mol

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Step 3

New concentr...

no of moles
molarity
volume(in litres)
0.0047mol
0.150L
-0.0313M
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no of moles molarity volume(in litres) 0.0047mol 0.150L -0.0313M

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