choose the best glassware... picking the right glassware A NaOH solution was pre
ID: 922224 • Letter: C
Question
choose the best glassware...
picking the right glassware
A NaOH solution was prepared by diluting 5.00 mL of 2.019 M NaOH to a final total volume of 100.00 mL. What is the exact molarity of the dilute NaOH (use 4-5 significant figures)?
For the problem above, select glassware and size from the list below to conduct the dilution.
A B C D E F G H <= Glassware used to transfer the 2.019 M NaOH to be diluted
A B C D E F G H <= Glassware used to measure the final volume of the diluted M NaOH.
5 10 15 20 25 50 100 250 500 1000 <= Volume of the glassware chosen to transfer the concentrated NaOH above
5 10 15 20 25 50 100 250 500 1000 <= Volume of the glassware chosen to contain the final dilute NaOH above
These are all my tries:
A Buret B Erlenmeyer flask C Graduated cylinder D Mohr pipet E Beaker F Volumetric Flask G Amber Bottle H Volumetric Pipet or PipettorExplanation / Answer
Dear Friend
For molarity calculations use formula M1V1 = M2V2
M1 = 2.019 M V1 = 5.00 ml M2 = to be calculated V2 = 100 ml
2.019 X 5.00 = M2 X 100 =>
1. M2 = 0.10095 This is your answer
2. Glassware used to transfer the 2.019 M NaOH to be diluted -------- C Graduated cylinder
3. Glassware used to measure the final volume of the diluted M NaOH. ---- C Graduated cylinder
4. Volume of the glassware chosen to transfer the concentrated NaOH above --- 5 ml
5. Volume of the glassware chosen to contain the final dilute NaOH above ----- 100 ml
Points to remember
1. Burette maximum volume is 50 ml only, so 100 ml cannot be measured.
2. For measuring purpose we should always use Graduated glassware only.
3. To get accurate readings it is better to use the same volume glassware.
All The Best My Friend.
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