Empirical formula - Study guides, Class notes & Summaries
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scin131 Quiz 4 - Questions with 100 Correct Answers | Graded A+
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Question 1 of 25 
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`One of the first chemical WMDs, researchers initially produced VX nerve agent for retail sale 
in the 1950s as a pesticide. Thankfully, your likelihood of coming in contact with VX is 
extremely low - the world's stockpiles have been destroyed, including the United States' main 
stockpile in Anniston, AL. The molecular formula for this nerve agent is C11H26NO2PS, and it 
has a molar mass of 267.37 g/mol. Given this information, what is its empirical formula?...
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ISDS 361A FINAL EXAM 2024 WITH 100% CORRECT ANSWERS
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ISDS 361A FINAL EXAM 2024 WITH 100% CORRECT ANSWERS 
 
 
uses all the data (the most efficient) - correct answer Standard deviation 
 
Probability - correct answer likelihood that a particular event will occurlikelihood that the random variable takes values within a particular range. 
 
coefficient of variation formula - correct answer standard deviation/mean 
 
coefficient of variation - correct answer A measure of relative variability computed by dividing the standard deviation by the mean an...
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SCIENCE SCI 133 quiz 4 | 100% Correct Answers | American Military University
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Your grades have been posted and your short answer questions graded with comments. 
Thanks! 
Prof Heath 
Part 1 of 3 - 24.0/ 52.0 Points 
Question 1 of 25 
4.0/ 4.0 Points 
A compound responsible for the odor of garlic has a molecular weight of 146 g/mol. A 0.650 g 
sample of the compound contains 0.321 g of carbon, 0.044 g of hydrogen, and 0.285 g of sulfur. 
What is the molecular formula of the compound? 
 
A. 
C3H5S 
 
B. 
C3H15S3 
 
C. 
CH5S 
 
D. 
C6H10S2 
Feedback:Great! Empiri...
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MCAT entrance exam all subjects combined questions & answers latest update
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m 
 
 
 
 
 
 
1.	Which of the following is the mRNA start codon in most cases? 
 
A.	UAA	B. AGU	C. AUG	D. UGA 
 
 
 
2.	Which of the types of RNA is the smallest? 
 
A.	mRNA	B. tRNA	C. rRNA	D. 
 
 
 
3.	Which of the following is not considered a pyrimidine? 
 
A.	C	B. T	C. U	D. G 
 
 
 
4.	Which of the following is paired correctly? 
 
A.	A-G	B. C-G	C. A-U	D. G-T 
 
 
 
5.	Which of the following characterizes a Western blot? 
 
A.	Antibody/protein hybridization	B. DNA/RNA combination	C. RNA ...
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Gen Chem 1 Final Exam Questions and Answers | Latest Update | 2024/2025 | Graded A+
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Gen Chem 1 Final Exam Questions and 
Answers | Latest Update | 2024/2025 | 
 
Graded A+ 
 
What is the principle behind the law of conservation of mass in a chemical reaction? 
 The law of conservation of mass states that mass is neither created nor destroyed in a 
chemical reaction; the total mass of reactants equals the total mass of products. 
 
How do you determine the number of valence electrons in an atom? 
 The number of valence electrons can be determined by the group number of the eleme...
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IB Chemistry SL Latest Update Graded A+
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IB Chemistry SL Latest Update 
 
Graded A+ 
 
element a substance that cannot be broken down into simpler substances. 
 
atom smallest part of an element. 
 
compound substance that contains more than one element. 
 
empirical formula this shows the simplest whole number ratio of atoms of each element in a 
particle of the substance. 
 
molecular formula shows the actual number of atoms of each element in a molecule of the 
substance. 
 
structural formula this shows the arrangement of atoms an ...
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CHM 1100C QUIZ 3 with 20 Updated Questions and Answers Graded A+;Rasmussen College
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CHM 1100C QUIZ 3 with 20 Updated Questions and Answers Graded A+;Rasmussen College 
 
 
 
CHM 1100C QUIZ 3 with 20 Updated Questions and Answers Graded A+;Rasmussen College 
 
 
 
1.	What is the molecular formula for strontium hydroxide? 
a.	Sr (OH )2 
b.	Ba( OH )2 
c.	S e (OH )2 
d.	S t (OH )2 
2.	Xylose is a carbohydrate that contains carbon, hydrogen, and oxygen. The empirical formula of Xylose is CH2O, and its molar mass is 150.1g/mol. Find the molecular formula of Xylose. 
a.	C5 H 10 O5 
b....
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Chemistry 101 Final Exam Ivy Tech 2024/2025 A+ score assured
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Chemistry 101 Final Exam Ivy Tech 2024/2025 A+ score assured
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Honors Chemistry Final Exam Study Guide Graded A+
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Mole - Answer-SI unit for measuring the amount of substance; 
Molar Mass - Answer-the mass of a mole of an element 
Representative particles - Answer-refers to the species present in a substance: usually atoms, 
molecules, or formula units 
Avogadro's number - Answer-the number of representative particles in a mole 
Avogadro's hypothesis - Answer-states that equal volumes of gases at the same temperature and 
pressure contain equal numbers of particles 
Molar volume - Answer-the quantity, 22.4...
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SCIN131 Lesson 04 - Week 04 Quiz Questions with 100% Correct Answers
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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? 
 
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A.	the number of moles of the compound in a 1.00 g sample of the substance 
 
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B. the density of the compound 
 
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C. the boiling point and freezing poin...
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