js4 Name Lab Instructor Lab Day and Time Average density of liquid unknown L.O 2
ID: 3279784 • Letter: J
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js4 Name Lab Instructor Lab Day and Time Average density of liquid unknown L.O 221366 tab Report hate Questions (1pt eack) I. You want to transfer 10.00 mL using a transfer pipette but tunknosems to yow it is pected If this wes the incorrectly calibrated so that it transfers less than what you ex case the density you calculated for the liquid would tend to be smallerj than the correct value. Explain. Hint: Think about hoe your would be affected for your calculations. Hint: Think abonst how your 2. The density of water is about 1.0 g/mL at r the density of an nous solution at room temperat room temperature. Briefly explnin 1.0 g/mL. Give an example of such a solution. ture can be significantly less ther 3. How many significant figures are justified for the solid density determined from graduated cylinder and top loading balance data? Explain. Note: Refer to your lab manual and observations for determining significant figures for glassware and balances 4 How many significant figures are justified for the liquid density determined from transfer pipet and analytical balance data? Explain. Note: Refer to your lab maua and observations for determining significant figures for glassware and balances Please answer all the questionsExplanation / Answer
1) Larger
It is because density =mass/volume.
If mass is less, density becomes more.
2) When a less dense liquid is mixed with water, the density of the aqueous solution formed may be less than 1g/ml
For example - ethanol-water solution has density of 0.9 g/ml
3) Density = mass/volume
The significant figure of density will least significant figure of a variable on the right.
It depends upon density of ur measuring scale.
4) Again, The significant figure of density will least significant figure of a variable on the right.
It depends upon density of ur measuring scale.
The significant figures of analytical balance may be different from top loading balance.
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