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Athena cannot remember if the decomposition of hydrogen peroxide produces gaseous ozone, (O3 ) and water or if the decomposition produces gaseous oxygen and water. She asks her friend, Tracey Trojan, to help her by measuring the change in mass for a 100.0 g sample of 3.00 mass % H2O2 solution.
What is the expected change in mass if the decomposition of hydrogen peroxide produced ozone gas?
A) 1.41 g.
B) 2.12 g.
C) 2.82 g.
D) 4.24 g.
E) 5.14 g.
The following molecular equation represents the reaction that occurs when aqueous solutions of silver nitrate and calcium iodide are combined. 2 AgNO3(aq) + CaI2(aq) 2 AgI(s) + Ca(NO3)2(aq) Write the balanced net ionic equation for the reaction.
Problem- Propanoic acid (CH3CH2COOH or HPr) is an organic acid whose salts are used to retard mold growths in foods. What is the [H3O+] of 0.10 M HPr? Ka=1.3 x 10^-5.
how many unshared electron pairs must be included in the lewis structure for water , H2O? a-0 b-1 c-2 d-3 f-4
Show the Newman projection of chair-cyclohexane. From this structure, why is this the lowest energy-conformation
Question- The formation of azo compounds is a slow reaction, but the rate is often increased by raising the pH of the solution. Why does this help
calculate the percentage of empty space in 1 mole of water at 25 c. the volume of a molecule of water can be taken as the sum of the volumes of the two hydrogen atoms and the oxygen atom.
Lewis Structure and state which of the given compounds are isomers - There are three compounds are given as I. pentane , II. 2-methylbutane , III. 2,3-dimethylbutane , IV. 2,2-dimethylpropane V.
Explain how the debt capacity of the governmental entity is determined and evaluate the effect of refunding or reorganizing existing debt obligations.
Part A: If 2.7×10-2 atm of IBr is placed in a 2.0-L container, what is the partial pressure of IBr after equilibrium is reached?
The basicity test differentiates aromatic and aliphatic amines based on their solubility in a pH 5.5 buffer. Given that Kb for aniline is 4.2 x 10^-10 and Kb for cyclohexylamine if 5.0x10^-4, calculate the ratio of amine salt to dissolved amine fo..
completely, showing all bonds, electrons, and charges in reactants and products. Draw a reaction arrow between the reactants and products and plus signs between each reactant and each product.
how do you write two half balanced equations for the following acidic solution MnO4^-(a)+Fe(s)--->Mn^2+(aq) +Fe^2+(aq)
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