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Question 1 of 3
What volume in ml of a 12.68 mM Acetylcholine Chloride solution contains 1 millimole of Acetylcholine chloride? Answer to 3 significant figures.
ml
Millimolarity
12.68
Volume of ACh Solution = 0.07886 dm3
Volume of ACh Solution = 1000 x 0.07886 ml
Volume of ACh Solution = 78.86 ml = 78.9 ml to 3 sig figs
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Question 2 of 3
What volume in ml of 0.5600 M Potassium Permanganate (KMnO4) contains 33.18 grams of Potassium Permanganate?
Volume of Total System (in dm3 ) = Number of Moles
Molarity
Number of Moles of KMnO4 = Mass/RMM = 33.18/158.0 = 0.21 moles
Volume of KMnO4 Solution = 0.21 dm3
0.5600
Volume of KMnO4 Solution = 0.375 dm3
Volume of KMnO4 Solution = 1000 x 0.375 ml = 375 ml
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Question 3 of 3
An amount of 0.2260 M Chlorhexidine gluconate solution containing 141.25 millimoles of Chlorhexidine gluconate is to be made. Up to what volume in ml does the solution need to be made?
Volume of Total System (in dm3 )= Number of Moles
Molarity
Volume of Solution = 0.14125 dm3
0.2260
Volume of Solution = 0.625 dm3
Volume of Solution = 1000 x 0.625 ml = 625 ml
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