Question

part b
carry out these steps, and record your findings in the table.

1. pour water to the 2.0 ml mark in the graduated cylinder. if you look at the graduated cylinder from the side, you will see the water forms a curve. make sure the bottom of the curve is at the 2.0 ml mark.
2. use the gram scale to measure the mass of the graduated cylinder and 2.0 ml of water. record the mass in the table. calculate the mass of 2.0 ml of water by subtracting the mass of the graduated cylinder.
3. repeat this process to find and record the mass of 4.0 ml of water and then 6.0 ml of water.
4. density is mass in grams divided by volume in cubic centimeters (cm³). 1 ml is equal to 1 cm³. calculate and record the density of water.

volume of water	mass of graduated cylinder and water	mass of water	density
4.0 ml
6.0 ml

Explanation:

Step1: Measure mass of cylinder - water system

Let the mass of the empty graduated - cylinder be $m_{cylinder}$. Measure the mass of the graduated cylinder and 2.0 mL of water, say $m_1$. Then the mass of 2.0 mL of water $m_{2mL}=m_1 - m_{cylinder}$.

Step2: Repeat for other volumes

For 4.0 mL of water, measure the mass of the graduated cylinder and 4.0 mL of water, say $m_2$. The mass of 4.0 mL of water $m_{4mL}=m_2 - m_{cylinder}$. For 6.0 mL of water, measure the mass of the graduated cylinder and 6.0 mL of water, say $m_3$. The mass of 6.0 mL of water $m_{6mL}=m_3 - m_{cylinder}$.

Step3: Calculate density

The density formula is $
ho=\frac{m}{V}$. Since $1\ mL = 1\ cm^3$, for 2.0 mL of water, $
ho_{2mL}=\frac{m_{2mL}}{2.0\ cm^3}$, for 4.0 mL of water, $
ho_{4mL}=\frac{m_{4mL}}{4.0\ cm^3}$, and for 6.0 mL of water, $
ho_{6mL}=\frac{m_{6mL}}{6.0\ cm^3}$. In an ideal case, the density of water is a constant value of approximately $1\ g/cm^3$.

Answer:

The density of water should be calculated for each volume as described above. In a perfect scenario, the density values for 2.0 mL, 4.0 mL, and 6.0 mL of water should all be close to $1\ g/cm^3$. Record the measured masses of the graduated - cylinder and water combinations, calculate the mass of water for each volume, and then use the density formula $
ho=\frac{m}{V}$ to find the density values.