And molar mass Study guides, Class notes & Summaries
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HESI A2 CHEMISTRY-CHRISJAY FILES (1) (1)
- Exam (elaborations) • 54 pages • 2023
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HESI A2 ENTRANCEEXAM 
FOR 
CHAMBERLAINCOLLGE 
OF NURSING 
2023 QUESTIONS WITH 
ANSWERS 
CHEMISTRY 
HESI A2 CHEMISTRY V1/V2 FILE 
1. If a Hydrogen isin a compound, what would its oxidation number be? 
+1 
2. What isthe oxidation number of any simple ion? 
+1 or -1 depending on the charge of the ion 
3. How many kilograms are in a pound? 
0. kg 
4. What is the temperature for freezing point of water in Celsius? 
0 degrees Celsius (32°F for Fahrenheit) 
5. What is the conversion of Celsius to Fah...
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AP Chemistry Exam Review
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atomic number CORRECT ANSWER The same as the number of protons in the nucleus of an element; it is also the same as the number of electrons surrounding the nucleus of an element when it is neutrally charged. 
 
mass number CORRECT ANSWER The sum of an atom's neutrons and protons 
 
isotopes CORRECT ANSWER Atoms of an element with different numbers of neutrons 
 
Avogadro's number CORRECT ANSWER 6.022×10²³ particles per one mole 
 
Moles CORRECT ANSWER grams/molar mass 
 
Standard Temperatur...
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Mole and Molar Mass exam with 100% Correct answers already graded A+
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Mole and Molar Mass exam with 100% Correct answers already graded A+
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1000 MCQ's Dental ADC Waysem Latest Update 2023 Completely Solved
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1. For lower premolars, the purpose of inclining the handpiece lingually is to, 
 
A. Avoid buccal pulp horn 
B. Avoid lingual pulp horn 
C. Remove unsupported enamel 
D. Conserve lingual dentine - ANSWER A. Avoid buccal pulp horn 
 
Explanation 
1- avoid BUCCAL pulp horn 
2- conserve ling. dentine 
 
So take A and B if available 
 
2. For an amalgam restoration of a weakened cusp you should, 
 
A. reduce cusp by 2mm on a flat base for more resistance 
B. reduce cusp by 2mm following the outli...
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CHE2614 Assignment 2 (COMPLETE ANSWERS) 2024 - DUE 8 May 2024
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CHE2614 Assignment 2 (COMPLETE ANSWERS) 2024 - DUE 8 May 2024 ;100 % TRUSTED workings, explanations and solutions. For assistance call or W.h.a.t.s.a.p.p us on ...(.+.2.5.4.7.7.9.5.4.0.1.3.2)........... 
 
Questions in this assignment address specific outcome 3 of TL101. 
(Learning units 4 – 10), SWHC (9th ed; chapter 4, 7, 8, 12-17,), (10th ed; 2, 5,10-15) 
Question 1 
1.1 A solution was prepared by dissolving 765 mg of K3Fe(CN)6 in 500 mL of water. Calculate 
(a) the molar analytical con...
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CHE2614 Assessment 2 DUE 8 May 2024
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CHE2614 Assessment 2 DUE 8 May 2024 ;100 % TRUSTED workings, explanations and solutions. For assistance call or W.h.a.t.s.a.p.p us on ...(.+.2.5.4.7.7.9.5.4.0.1.3.2)........... 
Questions in this assignment address specific outcome 3 of TL101. 
(Learning units 4 – 10), SWHC (9th ed; chapter 4, 7, 8, 12-17,), (10th ed; 2, 5,10-15) 
Question 1 
1.1 A solution was prepared by dissolving 765 mg of K3Fe(CN)6 in 500 mL of water. Calculate 
(a) the molar analytical concentration of K3Fe(CN)6 (3) ...
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CHEM 1332 Practice Exam 1 Questions & Answers Solved 100% Correct!!
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What molality of pentane solution is obtained by dissolving 5.0 g pentane, C5H12, in 245.0 g hexane, 
C6H14? Enter your answer with two decimal places and no units. 
Molar mass pentane: 72.15 g/mol 
Molar mass hexane: 86.18 g/mol - 0.28 
5 g pentane x (1 mol/ 72 g)= 0.069 mol pentane 
245g > .245 kg hexane 
0.069 mol/ .245= 0.28 
If an aqueous CsCl solution is 7.28% CsCl (by mass) and has a density of 1.05 g/mL at 20.°C,what is the 
expected boiling point of the solution? Kb = 0.51°C/m for ...
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Test Bank For Vander’s Human Physiology 14th Edition (complete) | A Descriptive Test Bank for Vander’s Human Physiology 14th Edition_ Latest updated 2022
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Test Bank For Vander’s Human Physiology 14th Edition A Descriptive Test Bank for Vander’s Human Physiology 14th Edition By Eric P. Widmaier Dr., Hershel Raff, Kevin T. Strang Dr. What is this product? Test Bank for Vander’s Human Physiology 14th Edition is not a textbook, instead, this is a test bank or solution manual as indicated on the product title. Test Bank: This is a supplement to the textbook created by experts to help you with your exams. It is a collection of exam questions based...
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2023 AQA A-level PHYSICS 7408/2 Paper 2 Question Paper & Mark scheme (Merged) June 2023 [VERIFIED]
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2023 AQA A-level PHYSICS 7408/2 Paper 2 Question Paper & Mark scheme (Merged) June 2023 
[VERIFIED] 
A-level 
PHYSICS 
Paper 2 
Friday 9 June 2023 Morning Time allowed: 2 hours 
Materials 
For this paper you must have: 
• a pencil and a ruler 
• a scientific calculator 
• a Data and Formulae Booklet 
• a protractor. 
Instructions 
• Use black ink or black ball-point pen. 
• Fill in the boxes at the top of this page. 
• Answer all questions. 
• You must answer the questions in th...
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GACE Science Practice Test Questions and Answers Already Passed
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GACE Science Practice Test Questions 
 
and Answers Already Passed 
 
A researcher is studying the response of bacteria to a certain chemical. In 3 experiments, the 
bacteria swim towards the chemical, and in one experiment the bacteria swims away from it. 
What would be the most appropriate next step for the researcher. 
a. Report only the 1st three experiments. 
b. Report all the experiments but refrain from making any conclusions. 
c. Repeat the experiment several more times and apply a stati...
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