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Answer the following questions about the chemical reaction shown below.
O3 (g) + H2O (g) → H2 (g) + 2 O2 (g) ΔH = 3.0 kcal/mol
A flask contains the components of the reversible chemical reaction shown above, at equilibrium. Describe how the system will respond if each of the following stresses are applied.
The flask is heated. ________________________________________________
The pressure in the flask is increased. ________________________________
Oxygen gas is selectively removed from the flask. _____________________
25.00 mL of a tap water sample is titrated with5.00x10-3 M EDTA solution. 6.25 mL are required to reachthe endpoint. What is the hardness of the water in ppm
A student prepared a solution of sodium carbonate by adding 2.111 g of the solid to a 250.0 ml volumetric flask and adding water to the mark. Some of this solution was transferred to a burette. Explain what volume of solution the student should tr..
Helium-oxygen mixtures are used by divers to avoid the bends and are used in medicine to treat some respiratory ailments. What percent (by moles) of He is present in a helium-oxygen mixture having a density of 0.508g/L at 25C and 721mmHg?
1 tums tablet is 1.3g which has .5g of calcium carbonate, how many moles of calcium carbonate are in one tums tablet? From that value, calculate the number of moles of HCI that two TUMS tablers can neutralize
Based on what you have learned about the acid/base properties of Al3+ in aqueous solution, what side product might be produced in this reaction if too much.
What pH is required to start precipitation of Fe(OH)3 from a 0.110 M solution of FeCl3? Ksp of Fe(OH)3 = 4.0 10-29.
what is the intermediate of the photochemical isomerization of (E,E)-2,4-hexadiene to (Z,E)-2,4-hexadiene ? Draw the structure of this nternediate
Question- Apple wood is known to be one of the best firewoods available. It produces a hot, aromatic fire and little ash. You are interested in determining the amount of heat available from a cord of apple wood
A 4.0L sample of air collected at 298 K and then cooled to 278F while held at constant pressure. What is the new volume of the air
Indicate which layer( aqueous or organic) each component in the reaction will mainly reside in ( for both products and reactants ) for all the following three reactions: (1)Show the reaction of 1-naphthylamine hydrochloride with sodium hydroxide.
What was the mass percent of ascorbic acid in the sample?
Write a chemical equation for the synthesis of ethyl 2-methylpropanoate. Use structural formulas for each organic compound in your equation. Name each reactant.
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