Molecular mass Study guides, Class notes & Summaries
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CHEM 120 Exam 2: Chapters 5,6,7,8 (With Answer Key) - Chamberlain College of Nursing
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CHEM 120 Exam 2: Chapters 5,6,7,8 (With Answer Key) - Chamberlain College of Nursing.PART 1: Multiple Choice questions: Q 1-24. (2 point each) 
1. Chemical reactions (equations) show the following 
a. Reactants 
b. Products 
c. Physical state of each (gas or liquid or solid) 
d. All of the above 
2. The following is true for a mole 
a. It is also known as Avagadro’s number 
b. It contains 6.022 * 1023 molecules 
c. It contains mass equivalent to molecular weight 
d. All of the above are true 
...
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CHEM 120 Week 8 Lab Practical Online Quiz
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Station 1. You have run an experiment studying the effects of the molecular weight of a compound on the rate of diffusion in agar. Compound X has a molecular weight of 25.3 g/mol and compound Y has a molecular mass of 156.2 g/mol. On two separate agar plates, 0.1 g of each substance were transferred and allowed to diffuse for 2 hours. The results below were obtained. Use this information about this situation to answer the following three questions. 
1.	Question: (CO 1) What was the independent v...
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Test Bank For Chemistry 4th Edition by Julia Burdge
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Chapter 03 Stoichiometry: Ratios of Combination 
1. Calculate the molecular mass of tetraphosphorus decaoxide, P4O10, a corrosive substance which can be used as a drying agent. 
A. 469.73 amu 
B. 283.88 amu 
C. 190.97 amu D. 139.88 amu E. 94.97 amu 
2. Calculate the formula mass of rubidium carbonate, Rb2CO3. A. 340.43 amu 
B. 255.00 amu 
C. 230.95 amu 
D. 145.47 amu E. 113.48 amu 
3. Calculate the formula mass of (NH4)3AsO4. A. 417.80 amu 
B. 193.05 amu 
C. 165.02 amu 
D. 156.96 amu E. 108.96 a...
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TEST BANK for Seeley's Anatomy & Physiology 13th Edition by Cinnamon VanPutte, Jennifer Regan, Andrew Russo. All Chapters 1-29. (Complete Download) 1751 Pages
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Version 1 1 
CHAPTER 1 
1) Which technique creates a three-dimensional dynamic image of blood vessels? 
A) Digital subtraction angiography 
B) Magnetic resonance imaging 
C) Dynamic spatial reconstruction 
D) Positron emission tomography 
2) Magnetic resonance imaging is based on the movement of 
A) electrons in a magnetic field. 
B) carbons in a magnetic field. 
C) protons in a magnetic field. 
D) cells in a magnetic field. 
3) The delivery of a radioactive compound to the body to study the met...
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OCR 2023 Chemistry A H432/03: Unified chemistry A Level Question Paper & Mark Scheme (Merged)
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OCR 2023 
Chemistry A 
H432/03: Unified chemistry 
A Level 
Question Paper & Mark Scheme 
(Merged) 
Please Review and leave your Rating 
stars…. 
Please write clearly in black ink. Do not write in the barcodes. 
Centre number Candidate number 
First name(s) 
Last name 
Oxford Cambridge and RSA 
Friday 23 June 2023 – Morning 
A Level Chemistry A 
H432/03 Unified chemistry 
Time allowed: 1 hour 30 minutes 
INSTRUCTIONS 
• Use black ink. You can use an HB pencil, but only for graphs and dia...
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Straighterline Chemistry Final Exam Test Questions And Answers.
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Straighterline Chemistry Final Exam Test Questions And Answers. 
What is the term used for findings that are summarized based on a pattern or trend? 
a. Law 
b. Hypothesis 
c. Theory 
d. Phenomena 
e. Prediction - Answer a. Law 
Which of the following is a tentative explanation for a set of observations? 
Select one: 
a. Law 
b. Hypothesis 
c. Theory 
d. Phenomena 
e. Prediction - Answer b. Hypothesis 
If a liquid contains 60% sugar and 40% water throughout its composition then what is it 
calle...
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Test Bank For Foundations of College Chemistry 14th Edition Hein
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Package Title: Hein Test Bank 
Course Title: Hein 14e 
Chapter Number: 3 
 
 
Question type: Multiple Choice 
 
 
1) All matter is composed of elements. Approximately how many elements are there? 
 
a) 4 
b) 10 
c) 68 
d) 100 
 
Answer: D 
 
Difficulty: easy 
Learning Objective 1: Define an element and write the chemical symbol for an element when given its name. 
Section Reference 1: Section 3.1 
 
 
2) The smallest particle of an element that can exist is called a(n) ___. 
 
a) atom 
b) ferrul...
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AQA 7404-2 CHEMISTRTY PAPER 2-AS-MAY 2023-Paper 2 Organic and Physical Chemistry
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0 1 This question is about the analysis of organic compounds. 
For each pair of compounds in Questions 01.1 and 01.2, give a reagent (or 
combination of reagents) that could be added separately to each compound in a 
single reaction to distinguish between them. 
State what is observed in each case. 
0 1 . 1 CH3CH2CH2CHO and CH3CH2CH(OH)CH3 
[3 marks] 
Reagent(s) 
Observation with CH3CH2CH2CHO 
Observation with CH3CH2CH(OH)CH3 
0 1 . 2 Cyclohexane and cyclohexene 
[3 marks] 
Reagent(s) 
Observa...
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CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning).
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CHEM 103 Experiment 8 Molecular Mass Latest 100%Solved (Portage Learning). 
Experiment #: 8 Title: Molecular Mass 
Purpose: To Determine the Molar mass of unknowns. Molar mass estimation by 
freezing point depression. Determining the freezing point of the solvent cyclohexane 
and unknown solutes. Lastly, estimating the molar mass of solutes compared to the 
actual value. 
Procedure : 
Cyclohexane Molar Mass Cooling Curve 
● Measure 10 ml of cyclohexane and place it in a test tube. 
● Cap the...
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CHEM 210 Biochemistry Exams 1-8 and Final Exam.
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CHEM 210 Biochemistry Exams 1-8 and Final Exam. Question 1 
3 / 3 pts 
True or False: According to the Module, a compound with a molecular mass of 1,000 g/mol is 
considered a macromolecule. 
 
True 
Correct! 
 
False 
Question 2 
3 / 3 pts 
True or False: Biomolecules can have only two functional groups. 
 
True 
Correct! 
 
False 
Question 3 
3 / 3 pts 
True or False: The following functional group is an alcohol. 
 
True 
Correct! 
 
False 
Question 4 
3 / 3 pts 
True or False: In a eukaryot...
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