A sample of brass, with a density of 8.70 g/mL, is added a 100-mL graduated cyli

Question

A sample of brass, with a density of 8.70 g/mL, is added a 100-mL graduated cylinder with 55.5 mL of water. If the resulting water level is 68.0 mL, what is the mass of the sample of brass? A mineral sample is believed to be one of the following. To identify the substance, a chemist determined its density. The mineral sample weighs 5.94 g and has a volume of 0.73 cm^3. a. What was the density of the mineral sample? b. Using the table above, identify the mineral sample. Imagine you get the chance to shoot five arrows at each of the target depicted below. On each of the targets, indicate the pattern that the five arrows make when. c. You have poor accuracy and good precision. d. You have poor accuracy and poor precision. e. You have good accuracy and good precision.

Explanation / Answer

13) we know that the Density = Mass / Volume

here we need Mass...

Mass = Density x Volume = 8.70 x (68.0 - 55.5) = 108.75g..

14) a) Density of mineral sample = Mass / Volume = 5.94 / 0.73 = 8.1

b) Therefore the mineral is cinnabar..

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.