Summer Study Assignment – Honors Chem 2/AP Chemistry
... must be obtained in the diet is methionine. What is the percentage of carbon, nitrogen, and sulfur in this amino acid if the formula of methionine is CH3SCH2CH2CHNH2COOH? 105. Ammonia is produced by the reaction of nitrogen and hydrogen according to this balanced equation: N2 (g) + 3 H2 (g) 2 NH3 ...
... must be obtained in the diet is methionine. What is the percentage of carbon, nitrogen, and sulfur in this amino acid if the formula of methionine is CH3SCH2CH2CHNH2COOH? 105. Ammonia is produced by the reaction of nitrogen and hydrogen according to this balanced equation: N2 (g) + 3 H2 (g) 2 NH3 ...
Chapter 1 questions
... Nicotine is a highly toxic chemical which is strongly addictive when ingested, generally through the inhalation of burning tobacco. The relative molecular mass of nicotine is approximately 160. Quantitative analysis of this compound yields the following percentages by mass of its constituent element ...
... Nicotine is a highly toxic chemical which is strongly addictive when ingested, generally through the inhalation of burning tobacco. The relative molecular mass of nicotine is approximately 160. Quantitative analysis of this compound yields the following percentages by mass of its constituent element ...
Qualitative Analysis of Anions
... Test for Chloride ion, Cl . To a 2 mL portion of the test solution (known or unknown) add a few drops of 6 M HNO3 as needed to make the solution slightly acidic (Test with litmus paper). If you sample contains sulfide, it must be removed by boiling the solution a moment. The free sulfur formed does ...
... Test for Chloride ion, Cl . To a 2 mL portion of the test solution (known or unknown) add a few drops of 6 M HNO3 as needed to make the solution slightly acidic (Test with litmus paper). If you sample contains sulfide, it must be removed by boiling the solution a moment. The free sulfur formed does ...
DRAFT AP® CHEMISTRY 2005 SCORING GUIDELINES
... nice if we could reward those who do this correctly, even if they don’t get the M right. There will probably be a lot of recalculating by the readers in ii with incorrect numbers from i. I think that we should give credit for # moles sodium propanoate, since students may use a mole to mole rather th ...
... nice if we could reward those who do this correctly, even if they don’t get the M right. There will probably be a lot of recalculating by the readers in ii with incorrect numbers from i. I think that we should give credit for # moles sodium propanoate, since students may use a mole to mole rather th ...
Acids - Beck-Shop
... Sulfuric acid, H2SO4, is a strong acid, but this is true only for one of the two hydrogen atoms. When sulfuric acid is mixed with water each H2SO4 molecule dissociates, releasing just one of its two hydrogen atoms as an H+ ion: H2SO4(aq) → H+(aq) + HSO4−(aq) The resulting HSO4−(aq) ions then only pa ...
... Sulfuric acid, H2SO4, is a strong acid, but this is true only for one of the two hydrogen atoms. When sulfuric acid is mixed with water each H2SO4 molecule dissociates, releasing just one of its two hydrogen atoms as an H+ ion: H2SO4(aq) → H+(aq) + HSO4−(aq) The resulting HSO4−(aq) ions then only pa ...
Chapter Ten
... 10.2 Some Common Acids and Bases ► Sulfuric acid, H2SO4, is manufactured in greater quantity than any other industrial chemical. It is the acid use in the petroleum and pharmaceutical industry’s, and found in automobile batteries. ► Hydrochloric acid, HCl, is “stomach acid” in the digestive systems ...
... 10.2 Some Common Acids and Bases ► Sulfuric acid, H2SO4, is manufactured in greater quantity than any other industrial chemical. It is the acid use in the petroleum and pharmaceutical industry’s, and found in automobile batteries. ► Hydrochloric acid, HCl, is “stomach acid” in the digestive systems ...
Topic 8: ACIDS and BASES
... Bronsted-Lowry acids must have a hydrogen/proton that can be released easily as an ion, H+ (a replaceable hydrogen). This happens when the hydrogen is part of a weak bond or polar bond. If the acid has 1 replaceable hydrogen it is called a monoprotic acid. ...
... Bronsted-Lowry acids must have a hydrogen/proton that can be released easily as an ion, H+ (a replaceable hydrogen). This happens when the hydrogen is part of a weak bond or polar bond. If the acid has 1 replaceable hydrogen it is called a monoprotic acid. ...
Nitrocellulose
Nitrocellulose (also: cellulose nitrate, flash paper, flash cotton, guncotton, flash string) is a highly flammable compound formed by nitrating cellulose through exposure to nitric acid or another powerful nitrating agent. When used as a propellant or low-order explosive, it was originally known as guncotton.Partially nitrated cellulose has found uses as a plastic film and in inks and wood coatings. In 1862 the first man-made plastic, nitrocellulose, (branded Parkesine) was created by Alexander Parkes from cellulose treated with nitric acid and a solvent. In 1868, American inventor John Wesley Hyatt developed a plastic material he named Celluloid, improving on Parkes' invention by plasticizing the nitrocellulose with camphor so that it could be processed into finished form and used as a photographic film. Celluloid was used by Kodak, and other suppliers, from the late 1880s as a film base in photography, X-ray films, and motion picture films, and was known as 'nitrate film'. After numerous fires caused by unstable nitrate films, safety film (cellulose acetate film) started to be used from the 1930s in the case of X-ray stock and from 1948 for motion picture film.