Thank you for your help!

1. Calculate the volume of water delivered into the beaker. To find this, subtract your recorded pipette reading from 5.00 mL (5.00 mL your pipette reading mL = volume of water delivered).

I got 5-2.56mL= 2.44mL for this

2. What mass of water did the pipette deliver?

I think this is question 1 answer? I'm not sure if it's another calculation.

3. Use water temperature, water mass, and density (see Table 1) to calculate the volume of water delivered based on your mass measurement. Show your work in the lab notebook.

I'm not sure what equation to use here with the info from the table.

4. The calculated pipette volume should be within 0.02 mL of the recorded volume. Is your value within the error limit?

Table 1. Densities of Water at Various Temperatures (from CRC Handbook of Chemistry and Physics, 53rd Ed., pg. F-4). Whole number temperatures (in C) read from the first column; tenths degree across the top - find density in g/mL at the intersection. .0 .1 2 .3 .5 .6 .7 .8 9 15 0.999099 0.999084 0.999069 0.999054 0.999038 0.999023 0.999007 0.998991 0.998975 0.998959 16 0.998943 0.998926 0.998910 0.998893 0.998877 0.998860 0.998843 0.998826 0.998809 0.998792 17 0.998774 0.998757 0.998739 0.998722 0.998704 0.998686 0.998668 0.998650 0.998632 0.998613 18 0.998595 0.998576 0.998558 0.998539 0.998520 0.998501 0.998482 0.998463 0.998444 0.998424 19 0.998405 0.998385 0.998365 0.998345 0.998325 0.998305 0.998285 0.998265 0.998244 0.998224 20 0.998203 0.998183 0.998162 0.998141 0.998120 0.998099 0.998078 0.998056 0.998035 0.998013 21 0.997992 0.997970 0.997948 0.997926 0.997904 0.997882 0.997860 0.997837 0.997815 0.997792 22 0.997770 0.997747 0.997724 0.997701 0.997678 0.997655 0.997632 0.997608 0.997585 0.997561 23 0.997538 0.997514 0.997490 0.997466 0.997442 0.997418 0.997394 0.997369 0.997345 0.997320 24 0.997296 0.997271 0.997246 0.997221 0.997196 0.997171 0.997146 0.997120 0.997095 0.997069 25 0.997044 0.997018 0.996992 0.996967 0.996941 0.996914 0.996888 0.996862 0.996836 0.99680 DATA: A. Microscale Gravimetric Analysis of Calcium Carbonate. Drops of CaCl2: 11 Drops of Na2CO3: 15 Precipitate color: white B. Using Analytical Pipettes. Water temperature: 22.3C Mass of empty 50 mL beaker: 32.157 g Pipette reading: 2.56 mL Mass of 50 mL beaker + water: 34.791 g