Limiting reactant - Samenvattingen, Aantekeningen en Examens

What is the mechanism of the reaction between silver nitrate and tertiary alkyl halides? Which Lab? correct answer: SN1 and Lab 9: Preparation of 2-Chloro-2-Methylbutane *Starting Material : Tertiary Alcohol * Nu- : weak base but strong Nu- (Cl) *SN1 *Water is LG In lab 9 what is the purpose of HCl? Limiting Reactant? correct answer: -To convert the alochol (OH) from a poor LG (OH) to a great LG (OH2+) - To provide a strong Nu- (Cl-) LR= Alcohol In lab 9 why did we use sodium ...

Chem Lab - Final Exam Questions & Answers Already Passed Three methods of separating compounds - ️️Filtration, sublimation, evaporation Filtration - ️️the process that separates a solid from the liquid in a heterogeneous mixture Sublimation - ️️A change directly from the solid to the gaseous state without becoming liquid Evaporation - ️️Removing a liquid from a mixture by turning it into a gas. Solve for the mass of a chemical in a container - ️️[mass total] - [mass empty d...

The study of mass relationships in chemical reactions is called ₋₋₋₋₋₋₋ ? - Answer-stoichiometry Stoichiometry provides quantitative information about ₋₋₋₋₋ ? - Answer-chemical reactions ₋₋₋₋₋ must be conserved in a chemical reaction - Answer-mass Chemical Equations must be balanced for ₋₋₋₋₋₋ ? - Answer-mass The stoichiometric balancing ₋₋₋₋₋₋ are the numbers in front of the chemical formulas - Answercoefficients Stoichiometric bala...

IB Chemistry: Stoichiometry Rated A+ mole the amount of a substance which contains the same number of chemical species as there are atoms in exactly 12 grams of the isotope carbon-12 relative atomic mass the average mass of the atoms of an element relative to 1/12 the mass of an atom of carbon-12 Avogadro's constant the number of particles in one mole of a substance; equal to 6.02 x 10^23 empirical formula shows the simplest ratio of the atoms of different elements in a compound ...

Chapter 03 - Stoichiometry 1. Bromine exists naturally as a mixture of bromine-79 and bromine-81 isotopes. An atom of bromine-79 contains a. 79 protons, 79 electrons, and 35 neutrons. b. 35 protons, 44 neutrons, and 35 electrons. c. 44 protons, 44 electrons, and 35 neutrons. d. 34 protons and 35 electrons only. e. 35 protons, 79 neutrons, and 35 electrons. ANSWER: POINTS: DIFFICULTY: TOPICS: KEYWORDS: b 1 easy 3.1 atomic theory of matter | early atomic theory | general chemistry | isoto...

Chapter 03 - Stoichiometry 1. Bromine exists naturally as a mixture of bromine-79 and bromine-81 isotopes. An atom of bromine-79 contains a. 79 protons, 79 electrons, and 35 neutrons. b. 35 protons, 44 neutrons, and 35 electrons. c. 44 protons, 44 electrons, and 35 neutrons. d. 34 protons and 35 electrons only. e. 35 protons, 79 neutrons, and 35 electrons. ANSWER: POINTS: DIFFICULTY: TOPICS: KEYWORDS: b 1 easy 3.1 atomic theory of matter | early atomic theory | general chemistry | is...

Density - ANSWERmass/volume Law of Conservation of Mass - ANSWERmass reactants= mass products Law of Multiple Proportions - ANSWERatoms combine in fixed whole # ratios Alkali metals - ANSWERGroup 1 metals Alkaline earth metals - ANSWERGroup 2 metals Transition metals - ANSWERelements in groups 3-12 mol - ANSWER6.022x10^23 Limiting reactant - ANSWERreactant that's completely used up in a chemical reaction excess reactant - ANSWERreactant which doesn't get used up complet...

CHEM 121 LAB FINAL EXAM QUESTIONS WITH COMPLETE SOLUTIONS VERIFIED AND GRADED A+ ALREADY PASSED Which method of analysis generally is the fastest method, gravimetric or volumetric? Volumetric The label on plant food reads 25-20-17. What does this mean? 25% nitrogen 20% phosphorus 17% potassium Differentiate between qualitative and quantitative analysis. Qualitative is what is in the sample, quantitative is how much of something is in the sample. There is a 1.290 g of phosphorus P in a...

Chemistry Final ACS Exam 75 Questions with Verified Answers Accuracy? - CORRECT ANSWER Closeness of measurements to the TRUE VALUE of what is being measured Precision? - CORRECT ANSWER Closeness of a SET of measurements How do you calculate Percent Error? - CORRECT ANSWER I experimental-accepted I ____________________ x 100 accepted value Are zeros infront of non-zero digis significant? - CORRECT ANSWER Nope! ex: 0.0071 is only 2 sig figs Are zeros at the end of a number and...

Avogadro's constant - Answer the number of atoms, molecules, or ions in a mole of any substance (i.e., 6.02 × 10-23 per mol) concentration - Answer the amount of a substance dissolved in a given volume of liquid limiting reactant - Answer the reactant in a chemical reaction that when used up causes the reaction to stop mole - Answer the amount of substance in the relative atomic or formula mass of a substance in grams relative atomic mass Ar - Answer the average mass of t...