Scin131 week 04 quiz Study guides, Class notes & Summaries

SCIN131 Lesson 04 - Week 04 Quiz Questions with 100% Correct Answers Last document update:   ago

Lesson 04 - Week 04 Quiz Return to Assessment List Part 1 of 3 - 44.0/ 52.0 Points Question 1 of 25 4.0/ 4.0 Points `Eureka! I've discovered a new compound! Yay for me. I have determined that its empirical formula, but in order to determine its actual molecular formula, I need to know which of the following? • A. the number of moles of the compound in a 1.00 g sample of the substance • B. the density of the compound • C. the boiling point and freezing poin...

SCIN131 Week 04 Quiz Last document update:   ago

Question 1 of 25 4.0/ 4.0 Points `Eureka! I've discovered a new compound! Yay for me. I have determined that its empirical formula, but in order to determine its actual molecular formula, I need to know which of the following? •A. the number of moles of the compound in a 1.00 g sample of the substance •B. the density of the compound •C. the boiling point and freezing point of the compound •D. the molar mass of the compound. •E. none of these

CHEMISTRY SCIN131 Lesson 04 -Week 4 Quiz 4 answered Last document update:   ago

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, Z...