Converting moles to grams - Study guides, Class notes & Summaries

describe the basic functions all life forms must accomplish -response to environmental stimuli & maintain homeostasis -uptake and processing of nutrients/energy -regulation -growth and reproduction compare and contrast eukaryotic and prokaryotic cell types Prokaryotes: -circular chromosomes, no nucleus, no organelles, 3.5 bya -DNA concentrated in nucleoid Eukaryotes: -linear chromosomes, nucleus, organelles, 1.5 bya -DNA concentrated in nucleus Both: -cellular function takes p...

atomic number - Answer The same as the number of protons in the nucleus of an element; it is also the same as the number of electrons surrounding the nucleus of an element when it is neutrally charged. mass number - Answer The sum of an atom's neutrons and protons isotopes - Answer Atoms of an element with different numbers of neutrons Avogadro's number - Answer 6.022×10²³ particles per one mole Moles - Answer grams/molar mass Standard Temperature and Pressure (STP)...

atomic number CORRECT ANSWER The same as the number of protons in the nucleus of an element; it is also the same as the number of electrons surrounding the nucleus of an element when it is neutrally charged. mass number CORRECT ANSWER The sum of an atom's neutrons and protons isotopes CORRECT ANSWER Atoms of an element with different numbers of neutrons Avogadro's number CORRECT ANSWER 6.022×10²³ particles per one mole Moles CORRECT ANSWER grams/molar mass Standard Temperatur...

Intermolecular forces and how they affect physical properties /purification techniques: dipole-dipole, electrostatic, hydrogen, ion, london, - Answer-*dipole-dipole*: polar covalent molecules such as aldehydes and ketones. positive and negative end. polar molecules must be close together for force to be significant. weaker than ion-dipole forces; increase with polarity of molecule. *electrostatic*: occur between charged species, cations and anions, and are responsible for very high MP and B...

Chemistry Conversions Exam Questions Correctly Answered. Converting moles to grams - CORRECT ANSWER There are three steps to converting moles of a substance to grams: Determine how many moles are given in the problem. Calculate the molar mass of the substance. Multiply step one by step two. Converting grams to moles - CORRECT ANSWER Using a calculator, divide the number of grams by the molar mass. The result is the number of moles in your element or compound. For example, imagine you ...

Stoichiometry - Part of chemistry that studies amount of substances that are involved in reactions Mole Ratio - Identify how many moles of product are formed from a certain amount of reactant. Molar mass - Defined as the mass of given substance divided by its amount of substance Limiting Reaction - How much of the product is produce Excess Reaction - what is left over Theoretical yield - Quantify of a product obtained from the complete conversion of the limiting reactant in chemical reacti...

1. The molecular formula of a particular solid is C8H4O6. Its molecular mass is a. 288 amu. b. 100 amu. c. 296 amu. d. 196 amu. e. 170 amu. ANSWER: d POINTS: 1 DIFFICULTY: easy REFERENCES: 3.1 LEARNING OBJECTIVES: GENE.EBBI.13.67 - Calculate the formula mass from a formula. (Example 3.1) TOPICS: mass and moles of substance stoichiometry KEYWORDS: molecular mass OTHER: general chemistry 2. The hydrocarbon octane has the structural formula CH3(CH2)...

General Chemistry Exam 1 Review Questions And Answers | Latest Update | 2024/2025 | 100% Pass What is the primary difference between an ionic bond and a covalent bond in terms of electron distribution? In an ionic bond, electrons are transferred from one atom to another, resulting in the formation of ions, whereas in a covalent bond, electrons are shared between atoms. How can you determine the empirical formula of a compound given its percent composition? The empirical formula...

Chapter 1—The Foundations of Chemistry MULTIPLE CHOICE 1. Which of the following statements is incorrect? a. A body in motion possesses kinetic energy because of its motion. b. An object possesses potential energy because of its position or composition. c. Nuclear energy is an important kind of potential energy. d. Chemical reactions and physical changes that release energy to their surroundings are endothermic. e. The Law of Conservation of Matter and Energy states that the combined ...

*Chromatography* - Ans .-Chromatography is a method used by chemists to separate out mixtures. -Chromatography works because different dyes move up the paper and different rates. -Some will stick to the paper and others will dissolve more readily in the solvent and travel more quickly. -You can com[are different chromatograms to work out what dyes are in the unknown substance. *Ionic Bonding* - Ans .-In ionic bonding, atoms lose or gain electrons to formed charged particles which are...