0 of 5 questions completed
You have already completed this assessment. You cannot start it again.
Assessment is loading…
You must sign in or sign up to take this assessment.
You must first complete the following:
0 of 5 questions answered correctly
Time has elapsed.
You have reached 0 of 0 point(s), (0)
Earned Point(s): 0 of 0, (0)
0 Essay(s) Pending (Possible Point(s): 0)
Congratulations! You have demonstrated mastery of this course at INTERMEDIATE level.
Take a FREE Advance Assessment course to determine your areas of strengths and weaknesses
- 1. Question
What is the emprical formula of an organic compound containing 40% carbon and 6.67% hydrogen by mass ?(C=12, H=1, O=16)
- 2. Question
An element E, forms the following compounds with bromine: EBr2, EBr3, and EBr4 this observation illustrate the…………………….
- 3. Question
What mass of s02 contains the same number of molecules as 0.8g of CH4? (SO2=64g mol-1, CH4=16g mol-1)
- 4. Question
The volume of 0.25 moldm-3 solution of KOH that would yeild 6.5g of solid KOH on evaporation is (K = 39.0; O = 16.0; H = 1.00)……………
- 5. Question
The molar ratio of hydrogen to carbon in an organic liquid compound produced 64cm3 of vapour. What is the molecular formula of the liquid compound? (C=12, H=1, molar volume of a gas at s.t.p=22.4dm3