Molarity definition Study guides, Class notes & Summaries

1 FINAL EXAM CHEM 219 EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ The speed of a wave (c) is the product of its frequency (ν) and wavelength (λ). Correct Answer: E = hv = h x c / λ nm to m or m to nm Correct Answer: 1 m / 10^9 nm or 10^9 nm / 1 m What is the maximum number of electrons that can have the quantum numbers n = 3, ℓ = 2, mℓ = -2? Correct Answer: The Pauli exclusion principle states that no two electrons in a given atom can share the sa...

When using acids and bases, note that these substances are _____________. Make every effort to avoid contact with __________________. Be sure to wipe up any spills ___________. - corrosive; the skin and lab surfaces; immediately A neutralization reaction is a reaction between ___________ that results in the formation of ___________ and ________________. - an acid and base; water; salt Suppose you need to prepare 126.7 mL of a 0.270 M aqueous solution of NaCl. What mass, in grams, of NaCl ...

Chem 162 Final Exam Questions and Answers Latest Updated 2024/2025 (Graded A+) Chemistry definition correct answers Study of structure, properties, transformations of matter Matter correct answers Anything that has mass + takes up space Phases: solid, liquid, gas Condensed phases = solids + liquids Intermolecular Forces (IMF) correct answers = Interactions between molecules/atoms/ions Solution correct answers = Homogenous mixtures of 2+ pure substances In a solution, the solute is disperse...

For a certain method, a control has a mean result of 12 with a standard deviation (SD) of 2. What is the acceptable 95% range for this control? - correct answer 8 - 16 The best sample to obtain in order to diagnosis the parasite causing the posterior scalp nodule as illustrated in the photograph is: - correct answer Superficial skin snip Almost all individuals possess which Lutheran antigen profil...

Biotechnician Assistant Credentialing Practice Exam Latest Update Graded A After performing the PCR reaction with the primers she designed to amplify lanA, the same technician found that her PCR reaction contained two distinct bands, one at the expected size of 1200 kilobase pairs, and another unexpected band at 2000 kilobase pairs. What is the most likely reason there is an unexpected band in her PCR reaction? She used an annealing temperature that was too low In a biotechnology lab, tap wate...

For a certain method, a control has a mean result of 12 with a standard deviation (SD) of 2. What is the acceptable 95% range for this control? -Answer 8 - 16 The best sample to obtain in order to diagnosis the parasite causing the posterior scalp nodule as illustrated in the photograph is: -Answer Superficial skin snip Almost all individuals possess which Lutheran antigen profile? -Answer Lu(a-b+) Which one of the following statements concerning Tamm-Horsfall protein is FALSE?...

Which of the following statements accurately describes the difference between a sigma (σ) and a pi (π) bond? A. Pi bonds form from the side-to-side overlap of hybridized sp, sp^2, sp^3 superscript orbitals. B. Sigma bonds form from the end-to-end overlap of two hybridized s or p orbitals. C. The maximum number of σ versus π bonds between two atoms are different, but the energy level of the two bonds are the same. D. Only sigma bonds use hybridized orbitals to overlap in forming the b...

Chem 162 Final Exam Questions and Answers Latest Updated 2024/2025 (Graded A+) Chemistry definition correct answers Study of structure, properties, transformations of matter Matter correct answers Anything that has mass + takes up space Phases: solid, liquid, gas Condensed phases = solids + liquids Intermolecular Forces (IMF) correct answers = Interactions between molecules/atoms/ions Solution correct answers = Homogenous mixtures of 2+ pure substances In a solution, the solute is disperse...

Chemistry definition correct answers Study of structure, properties, transformations of matter Matter correct answers Anything that has mass + takes up space Phases: solid, liquid, gas Condensed phases = solids + liquids Intermolecular Forces (IMF) correct answers = Interactions between molecules/atoms/ions Solution correct answers = Homogenous mixtures of 2+ pure substances In a solution, the solute is dispersed uniformly throughout the solvent - Solute = compound(s) in lesser amount - ...

General Chemistry II (CHEM113) ACS Final 289 Questions with Verified Answers The two states that are collectively known as the condensed states are _______. - CORRECT ANSWER solid and liquid The attractive forces that exist between all molecules and atoms, and are the forces that hold many solids and liquids together - CORRECT ANSWER intermolecular forces Intermolecular forces are only significant at _____. - CORRECT ANSWER short distances The state of a sample of matter is determine...