Calorimeter - Samenvattingen, Notities en Examens

Chem 103 Module 1 to 6 Exam with Verified answers (100 OUT OF 100) Portage learning (Latest Update) MODULE 1 EXAM Question 1 Click this link to access the Periodic Table. This may be helpful throughout the exam. 1. Convert 845.3 to exponential form and explain your answer. 2. Convert 3.21 x 10-5 to ordinary form and explain your answer. 1. Convert 845.3 = larger than 1 = positive exponent, move decimal 2 places = 8.453 x 102 2. Convert 3.21 x 10-5 = negative exponent = smalle...

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...

AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E7 7404/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 Section B TOTAL Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions...

CHEM 103 Module 3 Exam Portage Learning 2023. NH4Cl is being dissolved in water and this process is being studied in a styrofoam coffee cup with a lid and the heat absorbed is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry term to describe the item listed. 1. The type of thermochemical process 2. The air above the cup Your Answer: 1) endothermic 2) Surroundings 1. Heat absorbed = Endothermic process 2. The air above the cup = Surro...

In a reciprocating feedwater pump, the _______________ A. water piston is larger than the steam piston B. water and steam piston are the same size C. steam piston is larger than the water piston D. steam valve has to be as large as the water valve correct answer: C. steam piston is larger than the water piston An ignition arch is used with a(n) ________________ stoker A. sidefeed B. spreader C. underfeed D. chain grate correct answer: D. Chain grate The try cocks on a wat...

CHEM 103 MODULE 3 EXAM WITH ANSWERS Click this link to access the Periodic Table. This may be helpful throughout the exam. A reaction between HCl and NaOH is being studied in a styrofoam coffee cup with a lid and the heat given off is measured by means of a thermometer immersed in the reaction mixture. Enter the correct thermochemistry term to describe the item listed. 1. The type of thermochemical process 2. The calorimeter and mixture of HCl + NaOH Your Answer: 1. The typ...

CHEMISTRY STRAIGHTERLINE EXAM An endothermic reaction causes the surroundings to: A. warm up B. become acidic C. condense D. decrease in temperature E. release CO2 - Correct Answer-D An exothermic reaction causes the surroundings to: A. warm up B. become acidic C. expand D. decrease its temperature E. release CO2 - Correct Answer-A Copper metal has a specific heat of 0.385 J/g•oC and has a melting point of 1083oC. calculate the amount of heat required to raise the temperat...

Beaumont Correct Answer-Army Doctor Wrote book on digestive physiology Observed chemical digestion Lind Correct Answer-Navy Scurvy Sailors called limeys b/c of him Alexio St. Martin Correct Answer-Trapper who had a hole in his stomach Lavosier Correct Answer-Calorimeter Father of Nutrition "Life is a Chemical Process" Funck Correct Answer-"Vital Amines" Babcock Correct Answer-Simplify the diet Babcock test First recorded nutritional exp

Practicals Chemistry AQA A-level Rated A+ Required Practical 1 - titration and making a standard solution Making a standard solution 1. weigh the required mass of solid using a sample bottle on a 2 dp balance. 2. transfer the solid into a beaker using distilled water to wash it out- preventing any solid remaining in the sample bottle. 3. reweigh the sample bottle and work out the difference. 4. Add 100cm3 of distilled water to the beaker to dissolve the solid (small volume of water) using a...

What is a calorie? Answer A unit of heat energy 2. With our crude calorimeters in class we burned food by lighting it on fire. What chemical reaction occurs when food is burned? How does this reaction relate to the breakdown of food for energy in our body? AnswerA combustion reaction occurs.The food and oxygen in the air combine to form carbon dioxide and water molecules and produce lots of energy. This happens in the body as well, using enzymes to catalyze all of the reactions. 3. If yo...

10th Grade Honors Chemistry Final Exam Already Graded A+ What is the term for the enthalpy change when one mole of a substance is burned completely in oxygen? Heat of Combustion What is the name of the process where heat is absorbed to break bonds in reactants and released when new bonds are formed in products? Bond Energy What is the term for the amount of heat needed to convert a solid into a liquid at its melting point? Heat of Fusion What is the name of the diagram th...