Question

A series of experiments were performed to determine the density of an unknown sample. The volume (mL) was plotted in the x-axis and the mass (g) was plotted in the y-axis. The linear regression line of best fit was calculated to be and the slope has units of g/mL: y = 0.103x + -0.017 Using the line of best fit, calculate the mass of the sample, g, that would be present in 23.489 mL of the sample.​

Answer 1

2.39 g

Step-by-step explanation:

To calculate the mass of the sample at a volume of 23.489 mL, we can use the equation of the line of best fit:

y = 0.103x + -0.017

where y is the mass in grams and x is the volume in mL.

So, for a volume of 23.489 mL:

mass = 0.103 * 23.489 + -0.017

mass = 2.39 g

Therefore, the mass of the sample in 23.489 mL would be approximately 2.39 g.