1) was the ph of any of the solutions significantly different than what you hypothesized? explain 2) what is the ph range of the solutions you tested? are any of the solutions very acidic or very basic? 3) what does ph measure? 4) compare the hydrogen ion concentration in vinegar to window cleaner. 5) is ph an absolute or a relative measure? explain 6) word origins. the p in ph stands for the german word potenz, which means "power" or "potential". the h represents the hydrogen ions (h+). how are these related to the definition of ph? 7) describe the relationship between the hydrogen ions (h+) and ph. how is ph related to a solution’s acidity? 8) do you notice anything about the solutions on the ph scale, their ph, and their location on the ph scale?

Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback

Acompound has a molar mass of 92.02 grams/mole, and its percent composition is 30.4% nitrogen (n) and 69.6% oxygen (o). what is its molecular formula? a. n2o4 b. no2 c. n2o d. n4o2

What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?