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Explain when 0.593 g of an unknown solute is dissolved in 14.9 g of water, the freezing point is depressed by 1.74 Celsius degree. Compute the molecular weight of the unknown solute, pretentious that it is a nonelectrolyte.
a 1.20 gram sample of dry ice is added to a 755ml flask containing nitrogen gas at a temperature of 25.0 degrees
Carbon disulfide can be made from reacting sulfur dioxide with carbon. The reaction is: 5C + 2SO2 = CS2 + 4CO How many grams of carbon disulfide can be produced from 450 grams of sulfur dioxide if excess carbon is added
For the following redox reaction, determine the oxidation states of all of the elements in the products and reactants. Which reactant is reduced and which is oxidized. Also, determine the reducing and oxidizing agents. Mg(s) + 2HCl(aq) ? MgCl2(aq)..
Write a balanced net-ionic equation for the two half redox reactions below. 1) BiO3^1(aq) + 6H^+(aq) + 2e- -------------> Bi^3+(aq) + 3H2O(l) 2) Mn^2+(aq) + 4H2O(l) ------------------------> MnO3^-(aq) + 8H^+(aq) + 5e- Also identify the oxidizing ..
For each of the subsequent molecules, offer a Lewis structure, comprising formal charge and resonance. Utilizing the table of bond enthalpies, along with the subsequent information, estimate. H°f for all of these molecules in the gas phase at 25°C..
Produce a document entitled copper include it's extraction methods it's physical properties ,uses,most importante chemical properties and complex ion formation
Calculate the concentration of bicarbonate ion, HCO3-, in a 0.010 M H2CO3 solution that has the stepwise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11
Assuming that none of the intermediates have appreciable concentrations, what are the values of d[C6H12O6]/dt, d[O2]/dt, d[CO2]/dt, and d[H2O]/dt, given that the overall rate is 1.0 x 10-4 mol·L-1s-1. Assume there is an excess of oxygen in the sys..
Construct a Born Haber cycle for the formation of the hypothetical compound NaCl2, where the sodium ion has a 2+ charge. A. How large would the lattice energy need to be for the formation of NaCL2 to be exothermic
A critical reaction in the production of energy to do work or drive chemical in biological systems is the hydrolysis of adenosine triphosphate, ATP to adenosine diphosphate ADP as described by ATP
calculate the percent by mass of the solute in each of the following aqueous solutions.a 5.76 g of nabr in 78.2 g of
Calculate the relative amounts of 1-chloropropane and 2-chloropane obtained the radical chlorination of propane
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