Question

Determine of the Density Table1. Determine of the Density 2.0 50.0 45.0 40.0 35.0 6.0 Volume(ml) Mass(g) Densitylg/mL) 0.50 2.97 5.94 9.22 4.61 4.0 14.40 3.60 27.10 4.52 29.04 10.0 44.32 average 4.45 std. dev. 0.85 ave. dev. 0.57 %RSD 19% 8.0 0 3.63 4.43 0 Mass(g) 0 y = 4.1573x R2 = 0.9683 15.0 10.0 5.0 0.0 + + 0.0 I 2.0 4.0 8.0 10.0 12.0 6.0 Volume(mL)

Use the equation of the trendline to calculate the expected volume of a sample of the unknown substance with a mass of [type the mass from your Excel Assignment]. Show your work using correct units and significant figures for all numbers. using sample 34.66g

Answer 1

04. - Auswers Trendline equation is ya 4.1573n ... (1) where y= mass of sample na Volume of sample slope = 4.1573 = density (in grams) (in m2) (by definition) x = y 4.1573 from equation ( mass of sample - yz.34.66g. so iz 34,66= 8.3371 ~ 8.34 401573. so volume of sample = [8.34 mL]