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(a) What are the similarities and differences between the 1s and 2s orbitals of the hydrogen atom?
(b) In what sense does a 2p orbital have directional character? Compare the "directional" characteristics of the and orbitals. (That is, in what direction or region of space is the electron density concentrated?)
(c)What can you say about the average distance from the nucleus of an electron in a 2s orbital as compared with a 3s orbital?
(d) For the hydrogen atom, list the following orbitals in order of increasing energy (that is, most stable ones first): 4f, 6s ,3d,1s, 2p.
For the borax solution at 48?C, no solid borax is present in the test tube. 5 millimeters is transferred to the corresponding calibrated test tube and subsequently titrated with the standardized hydrochloric acid solution.
If the protein has a molecular weight of 15,000, express its initial concentration in umoles/ml and in umoles/ul. If we want 2 umoles of the protein for a reaction, how much of the original solution do we need
Explain how does the rate differ in the presence of a catalyst. Do you believe that the catalyst would be more effective at higher concentration. Do you have any ideas as to how this catalyst might work, Define what are the charges on the reactant..
a liquid sample that weighs 2.585 g is a mixture of butane c4h10 and hexane c6h14. when the sample is combusted in an
Give a flowchart analogous to separating a diethyl ether solution containing anthracene, benzoic acid, 2- naphthol, and 4-nitroaniline. All compounds are solids when pure.
State a solution with density of 0.935 g/mL contains 37.8% H2CO, 15.0% C2H5OH, and 47.2% water by weight. Define is the molarity of H2CO?
How many milliliters of 0.200 M NaOH would be neutralized by the HCl produced after 60 minutes? After 90 minutes? After 120 minutes?
Foruntantely, this toxin decomposes to a safe mixture of products by first-order kinetics with a rate of .27 days^-1. How long will it take for the water to be safe to drink
NaHCO3 (aq) + H3C6H5O7 (aq) 3CO2 (g) + 3H2O (l) + Na3C6H5O7 (aq) If 1.10 g sodium bicarbonate and 1.10 g citric acid are allowed to react, how many grams of carbon dioxide will form.
The solubility of lead (II) sulfate is 4.0x10^-2 g/L. What is the solubility product constant for lead (II) sulfate?
It is possible to define metallic character as we do in this book and base it on the reactivity of the element and the ease with which it loses electrons.
Question- Which of the following will confirm that the decomposition of SO2Cl2 (to form SO2 and Cl2) is a first order process
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