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Can some explain clearly how to determine the valence electrons of transitional metals and also their ions. for ex Mo, Mo2+, Ag, Pb. Pb2+. Confuse about what makes up their outer shell.
Critically evaluate the procedure used in this experiment as a quantitative technique for the analysis of copper (II) ion. Suggest sources of errors and ways of minimizing the error
Compute the internal energy change if an ideal gas expands from a volume of 2.3 L to 6.4 L against a pressure of 1.8 atm and 330 J of heat are transferred from the surroundings to the system.
What are the concentrations of OH- and H in a 0.00054 M solution of Ba(OH)2 at 25 °C? Assume complete dissociation.
From your current perspective, what do you think the greatest threat is to human health resulting from pollution? Why do you think so?
since 1 mole of NaOH reacted for each 1 mole of acetic acid in solution, what is the number of moles of acetic acid present in a 10.0 mL sample of vinegar
A new potential heart medicine, code-named X-281, is being tested by a pharmaceutical company, Pharma-pill. As a research technician at Pharma-pill
Why is it an important concept that atoms generally appear in whole number molar ratios to each other in chemical compounds, and in general, would you expect that students would find this ratio to be lower or higher than the actual ratio
A student adds 0.1 mol of oxalic acid (H2C2O4) and 0.1mol of sodium dihydrogen phosphate to enough water to make 1.0L of solution. The following equilibrium is established with Kc from this reaction greater than 1
A particular reactant decomposes with a half-life of 145 s when its initial concentration is 0.310 M. The same reactant decomposes with a half-life
A nitric acid solution containing 71.0% HN)3 (by mass) has a density of 1.42 g/mL. How many moles of HNO3 are present in 1.00L of this solution?
likely to exhibit a stable +2 oxidation state? What are their electronic configurations
Calculate the maximum non-expansion work that can be done on the surroundings from the combustion per kilogram of H2(g) at constant pressure and 298.15K.
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