Ch 10 Gas Laws Sample Questions 1) A sample of gas (24.2 g) initially at 4.00 atm was compressed from 8.00 L to 2.00 L at constant temperature. After the compression‚ the gas pressure was __________ atm. A) 4.00 B) 2.00 C) 1.00 D) 8.00 E) 16.0 2) A balloon originally had a volume of 4.39 L at 44 °C and a pressure of 729 torr. The balloon must be cooled to __________°C to reduce its volume to 3.78 L (at constant pressure). A) 38 B) 0 C) 72.9 D) 273 E) 546 3) If 50
Free Gas Pressure Gas laws
* 9/4/12 12.3 - crystal structures crystalline structure: possess rigid and long-range order; its atoms‚ molecules‚ or ions occupy specific positions (Exs. wax ‚ice‚ sugar‚ salt‚ diamond‚ etc.) unit cell: basic repeating structural unit of crystalline solid -there are seven types of unit cells coordination number: number of atoms surrounding an atom in a crystal lattice -higher coordination number --> more tightly packed structure 3 types of cubic unit cells: -primitive cubic (sc) c#:
Premium Chemical kinetics Rate equation
ALCOHOLS Alcohols are compounds in which one or more hydrogen atoms in an alkane have been replaced by an -OH group. For the purposes of UK A level‚ we will only look at compounds containing one -OH group. For example: Primary alcohols In a primary (1°) alcohol‚ the carbon which carries the -OH group is only attached to one alkyl group Some examples of primary alcohols include: Secondary alcohols In a secondary (2°) alcohol‚ the carbon with the -OH group attached is joined directly to
Premium Alcohol Oxygen
Nuclear Chemistry webquest by Margaret Moore semester 1 Chemistry Part One 1) The term Half-life for a radio-active substance means the time it takes for the substance to decay while decreasing by ½. 2) Spontaneous fission is a type of radioactive decay in heavy elements with unstable nuclei being split into more stable smaller fragments 3) Two important application of neutron radiation are neutron therapy for tumors/cancer and neutron bombs for defense. 4) Ionization radiation is radiation
Premium Nuclear weapon Neutron Nuclear fission
Review for First Quarter Exam AP CHEMISTRY List of topics – Chapters: review‚ 1‚ 2‚ 3.1 and 3.2 1. Scientific Method 2. Significant Figures 3. Calculation with significant figures 4. Uncertainty 5. Density problems 6. Density Graphs interpretation 7. Dimensional Analysis 8. States of Matter 9. Classification of matter 10. Separation techniques 11. Structure of the atom a. historical development: Democritus; Aristotle; Dalton (postulates‚ law of definite proportions‚ law of multiple
Premium Atom Quantum mechanics Photon
Exercise 5 INTRODUCTION TO STEREOCHEMISTRY I. Introduction Stereochemistry is concerned with the shapes of molecules and how the differences in shapes can effect the properties and reactions of compounds. Subtle differences in molecular shape have far – reaching consequences and it is probably the field of molecular biology that a full awareness of molecular shapes has emerged. A knowledge of the molecular shapes of such vital compounds as sugars‚ amino acids‚ and proteins is essential
Premium Atom Methane Chemical bond
Biology Lab Scientific Paper Down syndrome is a condition in which a person has an extra chromosome. Chromosomes are small “packages” of genes in the body. They determine how a baby’s body forms during pregnancy and how the baby’s body functions as it grows in the womb and after birth. Usually‚ a baby is born with 46 chromosomes but babies with Down syndrome have an extra copy of one of these chromosomes‚ chromosome 21. A medical term for having an extra copy of a chromosome is trisomy. Down syndrome
Premium Down syndrome
Week 5 – Final Lab Report Paper SCI207 Dependence of Man on the Environment‚ Marc Hnytka July 8‚ 2013 Week 5 Final Paper Abstract My report was based on the how ground water may be affected by myriad containments present in our experiment and in our everyday . Surprisingly when vinegar was filtered through dirt it came out fairly clean. This surprised me because I would never believed that vinegar had such a profound effect on water considering its oily nature. I was
Premium United States Environmental Protection Agency Waterborne diseases Water pollution
Study of Bacterial Growth and Resistance Level to Certain Antibiotics INTRODUCTION Escherichia coli—better known as E. coli—is a gram negative‚ rod shaped bacteria. It is relatively harmless‚ but can occasionally cause food poisoning. It can also provide Vitamin K2. It prevents the establishment of pathogenic bacteria‚ and is associated with or found in the intestinal organ. The antibiotic that E. coli is resistant to is Penicillin. Bacillus subtilis—better known as B. subtilis—is known as
Premium Bacteria Bacillus Antibiotic resistance
chem FATHER AGNEL SCHOOL CLASS IX SUB : CHEMISTRY Matter In Our Sorroundings 1. Define matter. 2. What are the characteristics of matter? 3. What do you mean by the following terms: a. Evaporation b. Sublimation c. Condensation d. Latent Heat of Fusion e. Latent Heat of vaporisation. f. . Melting point g. Boiling point 4. Why do gases diffuse rapidly? 5. Write the relationship
Premium Water Temperature Chemistry