Percent ionization - Study guides, Class notes & Summaries

Paper chromatography is primarily separated by Polarity differences, hydrogen bonding Rf formula Distance spot moved / distance solvent moved What functional group forms from a peptide bond? Amide Gas-liquid chromatography Mobile phase is a gas (He) Stationary phase is high-bp liquid adsorbed on solid Compounds with lower boiling points elute first Sn2 reaction a bimolecular nucleophilic substitution reaction Causes inversion of stereochemistry (reverse R ...

C The electron configuration of indium, In, is ______. B In general, atomic radii _____. A) increase from left to right in a period and increase down a group. B) decrease from left to right in a period and increase down a group. C) increase from left to right in a period and decrease down a group. D) do not change across a period or a group. E) decrease from left to right and decrease down a group. AD D. g x 1mo/mm x 6.022x10^23/1 mol x #of na atoms Calculate the number of sod...

CIH Exam Questions with correct Answers 2023 Mist/Fog particle size 5-100 um Smoke particle size less than 1 um Fume particle size less than 1 um (tend to agglomerate into clusters) Breathing Zone NEW - hemisphere forward of sholders with a radius of 6-9" OLD - 2' diameter sphere centered on head Systematic Error Correctable error - malfunction of sampler, instrument, or operator - affects accurancy (not precision) Random Error Unknown/uncontrollable ...

Chapter 3—Chemical Equations and Reaction Stoichiometry MULTIPLE CHOICE 1. Which of the following is not a consequence of the Law of Conservation of Matter? a. It provides a basis for balancing chemical equations. b. It means that there will be no observable change in the quantity of matter during a chemical reaction. c. As a result, there will be the same number of moles on both the reactant and the product side of a balanced equation. d. It can be stated as "matter is neither creat...

Catalyst (enzyme) -correct answer A substance that increases the rate of a chemical reaction without being changed itself, lowers the activation energy needed for a reaction Electrolyte -correct answer A substance that is dissolved in solution and some of its molecules split or dissociate into electrically charged atoms or ions Oxidant -correct answer Causes a GAIN of electrons and is REDUCED in a chemical reaction Reductant -correct answer Causes a LOSS of electrons and is OXIDIZED in ...

CAMRT Exam Questions with Rationale 2024 half-life and energy of Tc-99m T= 6hrs 140keV half-life and energy of Mo-99 T=66hrs 740keV and 778keV Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:07 / 0:15 Full screen half-life and energy of I-131 T=8 days 364keV half-life and energy of I-123 T=13hrs 159keV half-life and energy of In-111 T=67hrs 171keV and 245keV Half life and energy of Xenon-133? ...

Hazardous Materials (HazMat) Technician .1. Top Revision Guide. 100% coverage. b) Flammability - CGI, Multi-Gas Monitor, PID, FID - -- Used to determine the presence of flammable vapors of hydrocarbon products - They measure the flammable vapors as a percentage of the lower explosive limit - Many combustible gas indicators are combination instruments, that also measure oxygen content and several toxic substances (c) Oxidation potential - Oxygen Meters and Photoionization Detect...

Cation vs Anion - Cation- positive charge Anion- negative charge Electromagnetic Spectrum - (Short λ) Gamma, Xray, Ultra Violet, Visible, Infrared, Micro, Radio (Long λ) Frequency vs Wavelength - Long Wavelength (λ)→Low Frequency (v) Short Wavelength (λ)→High Frequency (v) Principle Quantum Number - (n) - size of orbital 1,2,3,4... Angular Moment Quantum Number - (l) - Shape of orbital 0,1,2,3...n-1 Magnetic Quantum Number - M₁ - Orientation of ...

As a source is retracted into the shielded position from a collimated exposure, the survey meter measurement should? Increase, then decrease The term used to express the number of curies of radioactivity per unit of source weight is? Specific Activity The best means to reduce exposure from an external radiation is? To optimize the factors of time, distance, and shielding Radioactive source leak tests are checked for? Contamination from capsule rupture Daily inspec...

PCOA - Pharmaceutical Sciences Questions and Answers Graded A+ What effects does change in structure and as a result biodistribution have on a drug? (Physico-Chemical Properties of Drugs) Changes the solubility, metabolism, and excretion properties of the drug within the limits of the biological target. Electrolytes Ionic/ weak acid or base Hydrogen Bonds Hydrogen bonds form between polar groups Interaction between an electronegative atom (O, N, S) and a polarized hydrogen. Polarized H i...