The molar mass Study guides, Class notes & Summaries
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![CHEM 162 Experiment 5: Spectrochemical Series Complete Solution 2023](/docpics/63f7a9346e122_2403947.jpg)
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CHEM 162 Experiment 5: Spectrochemical Series Complete Solution 2023
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CHEM 162 Experiment 5: Spectrochemical Series Complete Solution 2023. Part A: Preparation of cis-Bis(glycinato)copper(II) monohydrate, Cu(gly)2 
·H2O 
mass CuSO4 
·5H2O g 
mass NH2CH2CO2H (glycine) g 
molar mass CuSO4 
·5H2O g/mole 
moles CuSO4 
·5H2O moles 
molar mass NH2CH2CO2H (glycine) g/mole 
moles NH2CH2CO2H (glycine) moles 
limiting reagent is 
molar mass Cu(gly)2 
·H2O g/mole 
(Note for molar mass: each glycine loses the acidic proton in order to be a bidentate ligand) 
mass Cu(gly)...
![RNAS C Practice Test Review 437 Questions with Verified Answers,100% CORRECT](/docpics/4293177/65ada3de61099_4293177_121_171.jpeg)
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RNAS C Practice Test Review 437 Questions with Verified Answers,100% CORRECT
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RNAS C Practice Test Review 437 Questions with Verified Answers 
 
A capacitor and resisitor in parallel - CORRECT ANSWER will have same voltage across since in parallel. 
if in series, voltage drops would occur 
 
they can be treated together 
 
If the absolute pressure of a gas is increased from 3 atm to 4 atm at constant volume, then the absolute temperature of the gas will increase by: 
A. 25%. 
B. 33%. 
C. 67%. 
D. 75% - CORRECT ANSWER B. Assuming the validity of the Ideal-Gas law, PV = n...
![Test Bank For Organic Chemistry 9th Edition by John E. McMurry](/docpics/3488963/650ef2afc9663_3488963_121_171.jpeg)
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Test Bank For Organic Chemistry 9th Edition by John E. McMurry
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Chapter 01 - Structure and Bonding 
1. Give the ground-state electron configuration for carbon (atomic number 6). 
1s22s22px12py1 or 1s22s22p2 
2. Give the ground-state electron configuration for fluorine (atomic number 9). 
ANSWER: 
POINTS: 1 
1s22s22px2 2py2 2pz1 or 1s22s22p5 
3. Give the ground-state electron configuration for magnesium (atomic number 12). 
1s22s22p63s2 
4. How many electrons does silicon have in its valence shell? 
ANSWER: four POINTS: 1 
Exhibit 1-1 
Write valid Lewis (elec...
![Student Exploration: Moles GIZMO ( ALL ANSWERS CORRECT )](/docpics/6302f00887628_1911085.jpg)
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Student Exploration: Moles GIZMO ( ALL ANSWERS CORRECT )
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Student Exploration: Moles 
Vocabulary: atomic mass, Avogadro constant, conversion factor, dimensional analysis, mole, 
molar mass, molecular mass, scientific notation, significant figures, unified atomic mass unit 
Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 
1. In the image to the right, note a dozen eggs, a dozen donuts and 
a dozen roses. How many of each item do you have? 
2. Would a dozen of each object have the same mass? 
3. Suppose you have a dozen carbon atoms, a dozen...
![CHEM120 Week 8: Exam 3 (Units 5, 6, and 7) – With 100% Correct Answers- Download To Score An A+](/docpics/5096312/66294d1c9dbac_5096312_121_171.jpeg)
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CHEM120 Week 8: Exam 3 (Units 5, 6, and 7) – With 100% Correct Answers- Download To Score An A+
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CHEM120 Week 8: Exam 3 (Units 5, 6, and 7) – With 100% Correct Answers- Download To Score An A+ 1. Question: (TCO 7) (a, 5 pts) Given that the molar mass of H3PO4 is 97.994 grams, determine t he number of grams of H3PO4 needed to prepare 0.25L of a 0.2M H3PO4 solution. Show your work. (b, 5 pts) What volume, in Liters, of a 0.2 M H3PO4 solution can be prepared by diluting 50 mL of a 5M H3PO4 solution? Show your work. (Pts. : 10) A. Molarity = moles of solute/liters of solution moles of solute ...
![Edexcel iGCSE Chemistry, question and answer with rated solution](/docpics/6405d15365985_2440515.jpg)
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Edexcel iGCSE Chemistry, question and answer with rated solution
- Exam (elaborations) • 29 pages • 2023
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Edexcel iGCSE Chemistry, question and answer with rated solution 
Experiment for Diffusion? 
1) HCl placed at one end of the test tube, ammonia solution at the other. 
2) Where they meet, a ring of Ammonium Chloride appears. 
3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. 
 
 
 
Experiment for Dilution? 
1) Put a coloured substance in a solvent e.g food colouring in water. 
2) Over the time, the colour le...
![HESI A2 CHEMISTRY-CHRISJAY FILES (1) (1)](/docpics/63c0728204a6f_2251327.jpg)
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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...
![AP Chemistry Exam Review](/docpics/3634842/652da1018486f_3634842_121_171.jpeg)
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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...
![1000 MCQ's Dental ADC Waysem Latest Update 2023 Completely Solved](/docpics/6435c69910dd3_2582437.jpg)
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1000 MCQ's Dental ADC Waysem Latest Update 2023 Completely Solved
- Exam (elaborations) • 200 pages • 2023
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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...
![ACS Gen Chem 2 Final Exam Study Guide questions with correct answers](/docpics/3634632/652d9c6614d20_3634632_121_171.jpeg)
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ACS Gen Chem 2 Final Exam Study Guide questions with correct answers
- Exam (elaborations) • 21 pages • 2023
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C CORRECT ANSWER Where is the hydrophilic (attracted to water) region of the molecule? 
(A) Region 1 
(B) Region 2 
(C) Region 3 
(D) The three regions are equally hydrophilic 
 
C CORRECT ANSWER Which molecule is most soluble in water? 
 
D CORRECT ANSWER A solution of NaCl in water has a concentration of 20.5% by mass. What is the molal concentration of the solution? 
 
Molar Mass NaCl = 58.44 g/mol 
 
(A) 0.205 m 
(B) 0.258 m 
(C) 3.51 m 
(D) 4.41 m 
 
B CORRECT ANSWER What is the mole fracti...
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