Calculate the mass of 1mL of each liquid, by calculating the mass of 1mL of liquid from each 20mL amount that was added, then taking the average.
To calculate the mass of 1 mL of each liquid, you will need to follow these steps:
1. Measure the mass of an empty container (such as a beaker or a cup) using a balance and record the value. Let's call this mass "M1".
2. Add 20 mL of the liquid to the container and measure the total mass of the container plus the liquid. Record this mass as "M2".
3. Calculate the mass of the liquid by subtracting M1 from M2 (i.e., M2 - M1). Let's call this mass "m". This value represents the mass of the 20 mL of liquid.
4. To find the mass of 1 mL of liquid, divide the mass "m" by 20.
Repeat these steps for each liquid and calculate the mass of 1 mL of each liquid from each 20 mL amount added. Make sure to use the same container and balance for consistent measurements.
Finally, take the average of the mass values you obtained for each liquid by summing the individual mass values and dividing by the number of liquids.
Keep in mind that the density of each liquid may vary, so the mass values may differ for different liquids.