<u>Answer:</u> The density of NaCl solution is 3.930 g/mL
<u>Explanation:</u>
We are given:
Mass of cylinder,
= 21.577 g
Mass of NaCl and cylinder combined, M = 39.664 g
Mass of NaCl,
= ![(M-m_1)=(39.664-21.577)g=18.087g](https://tex.z-dn.net/?f=%28M-m_1%29%3D%2839.664-21.577%29g%3D18.087g)
To calculate density of a substance, we use the equation:
![\text{Density of substance}=\frac{\text{Mass of substance}}{\text{Volume of substance}}](https://tex.z-dn.net/?f=%5Ctext%7BDensity%20of%20substance%7D%3D%5Cfrac%7B%5Ctext%7BMass%20of%20substance%7D%7D%7B%5Ctext%7BVolume%20of%20substance%7D%7D)
We are given:
Mass of NaCl = 18.087 g
Volume of NaCl solution = 4.602 mL
Putting values in above equation, we get:
![\text{Density of NaCl}=\frac{18.087g}{4.602mL}\\\\\text{Density of NaCl}=3.930g/mL](https://tex.z-dn.net/?f=%5Ctext%7BDensity%20of%20NaCl%7D%3D%5Cfrac%7B18.087g%7D%7B4.602mL%7D%5C%5C%5C%5C%5Ctext%7BDensity%20of%20NaCl%7D%3D3.930g%2FmL)
Hence, the density of NaCl solution is 3.930 g/mL