Molar volume - Study guides, Class notes & Summaries
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PACT Science 7-12 exam 2024/2025 with 100% correct answers
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Ionic Character correct answersdifference between in electronegativity between two atoms 
 
cation correct answerspositively charged ions 
 
anion correct answersnegatively charged ions 
 
Which organic compound smells like fruit? correct answersesters - mostly found in fruits 
 
Compound correct answerssubstance containing two or more chemical elements held together by chemical bonds 
 
What type of reaction is the process of fermentation? correct answersexothermic (converting sugar into alcoho...
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Exam 3 - Physical Chemistry University of Nebraska - Omaha Questions with well explained answers
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Phase - Answer-Substance in a form of matter which is homogeneous throughout in chemical 
composition and physical state 
Transition - Answer-A change from one state to another at a characteristic temperature and a given 
pressure 
What happens to free energy between phase in a spontaneous process? - Answer-The free energy 
decreases between phases 
What happens to free energy as the pressure increases? - Answer-Free energy increases as pressure 
increases due to the fact that molar volume is al...
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First Semester Study Guide AP Chem Buck Exam 196 Questions with Verified Answers,100%CORRECT
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First Semester Study Guide AP Chem Buck Exam 196 Questions with Verified Answers 
 
Salts containing which of the following ions are generally insoluble in cold water? 
a. nitrate 
b. acetate 
c. phosphate 
d. potassium 
e. ammonium - CORRECT ANSWER C. Phosphate 
 
Which of the following changes alone would cause a decrease in the value of Keq for the reaction represented above? 
a. Decreasing the volume of the 
reaction vessel 
b. Adding a catalyst 
c. Increasing the volume of the 
reacti...
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PACT Science 7-12 Latest 2024 Graded A+
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PACT Science 7-12 Latest 2024 Graded 
 
A+ 
 
Ionic Character difference between in electronegativity between two atoms 
 
cation positively charged ions 
 
anion negatively charged ions 
 
Which organic compound smells like fruit? esters - mostly found in fruits 
 
Compound substance containing two or more chemical elements held together by chemical 
bonds 
 
What type of reaction is the process of fermentation? exothermic (converting sugar into 
alcohol) 
 
Molar volume of any gas at STP 22.4 ...
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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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Chem Exam: Types of Calculation Questions & Answers 100% Verified
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Chem Exam: Types of Calculation Questions & Answers 100% Verified 
Calorimetry Calculations: 
1. 2.50 kJ of energy changes the temperature of a sample of lead by 8.52 degrees C. What is the mass of 
the sample? - ANS-Q = mcΔT 
m=Qc/Δt 
m = 2500/0.13(8.52) 
= 2.3×103 g 
2. 950.3 J of energy is removed from 28.5 g of water at 80.3 degrees C. What is the final temperature? - 
ANS-Q = mcΔT 
−950.3 = 28.5(4.18)(T2 − 80.3) 
T2 = −950.3/(28.5)(4.18) + 80.3 
= 72.3O C 
3. A 30.56 g sample...
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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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CHM 2041 Final Exam Study Guide
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What are 4 measures of pressure? Correct Answers mmHg 
Torr 
Atm 
Pascal 
 
What unit is equal to mmHg? Correct Answers Torr 
 
What is the conversion of atm to mmHg? Correct Answers 1 atm= 760 mmHg 
 
What is the conversion of atm to psi? Correct Answers 1 atm= 14.7 psi 
 
What is Boyle's Law? Correct Answers P1V1= P2V2 
Inverse relationship 
Constants are temperature and amount of gas 
 
Charles Law Correct Answers V1/T1=V2/T2 
volume and temperature are linearly related 
Pressure and amount...
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Chem 102 Final Exam Questions And Answers!!
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P=F/A - Answer-pressure equals force divided by area 
Boyle's Law - Answer-they volume of a fixed quantity of gas at constant temperature is INVERSELY 
proportional to the pressure 
Boyle's Law equation - Answer-PV=K 
Charles's Law - Answer-The volume of a fixed amount of gas at a constant pressure is directly 
proportional to its absolute temperature 
Charles's Law Equation - Answer-V/T=K 
Avogadro's Law - Answer-The volume of a gas at constant temperature and pressure is directly 
proport...
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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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