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The boiling point of another member of this homologous series wasfound to be 309 . What is the likely molecular formula for this compound?
liquid NCl3 in a 2.50L closed container is heated until it decomposes completely to gaseous products. the resulting mixture exerts a pressure of 745mm Hg at 95 degrees celsius
An iron ore was found to contain 92.0% pyrite (fool's gold). Pyrite has the formula FeS2and is 46.5% iron. How many grams of iron are there in 65.8 grams of iron ore
The amount of nitrogen in an organic substance can be determined by an analytical method, called the Kjeldahl method, in which all the nitrogen in the organic substance is converted to ammoinia.
Given the following data H Cl bond enthalpy = +431 kJ/mol, ?Hf HCl(g) = -92.31 kJ/mol
Calculate the pH of a buffer solution that is 0.200 M HC2H3O2 and 0.100 M in NaC2H3O2. Calculate the pH of the buffer that reults from mixing
F. Explain how Le Chatelier's Principle affects the extent of the dissociation of acetic acid in a buffer that is 0.10 M acetic acid and 0.10M acetate ion. Write the balanced chemical reaction for the two applicable equilibria.
Which of the following is true of the individual resonance structures which contribute to a resonance hybrid. a) each resonance structure actually exists
What is the relationship between myelin sheath and dopmaine? What does myelin sheath do, how does it porvide insultion. What disease are caused when myelin sheath stops working and how does this effect elderly people?
What are the primary uses of the 3 products mentioned? 2.) What are the ACTIVE ingredients?
the excess I3- was titrated with 50.00 ml of a 0.02000 M Na2S2O3 solution. What was the mass percent of arsenic trichloride in the original sample?
Calculate the pressure exerted in the closed end of an apparatus. If the atmospheric pressure 720 torr and the height of the water column is 22.3cm.
At a certain temperature, the equilibrium constant, Kc, for this reaction is 53.3. H2(g)+I2(g) 2HI(g) Kc=53.3 At this temperature, 0.800 mol of H2 and 0.800 mol of I2 were placed in a 1.00-L container to react. What concentration of HI is present ..
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