CHEMISTRY SCIN131 Lesson 04 -Week 4 Quiz 4 answered
Question 12 of 25 4.0 Points `I was wading in the creek and discovered what I thought to be a small meteorite. I took a small sample of it home, ran some fancy schmancy chemical tests on it, and determined it was 18.0% chromium by mass. How many grams of this meteorite would I need to be able to have 15.0 g of chromium? A.100 B.120.0 C.2.7 D.83.3 Answer Key: D Feedback: Good. See section 6.6 and 6.7 Question 13 of 25 4.0 Points `Suppose I lay before you 5.0 gram samples each of Sr, Zr, Co, and Te. Which of these samples would contain the smallest number of moles? A.Sr B.Zr C.CoD.Te E.They would all contain the same number of moles Answer Key: D Feedback: Good. See section 6.3
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chemistry scin131 lesson 04 week 4 quiz 4 answered