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Finding the Thermodynamic parameters (Enthalpy of the reaction)
How many liters of cyclohexane require to be burned to free as much energy as burning 10.0 Ib of pine logs? The density of cyclohexane is 0.7785g/mL, and its DeltaH comb = -46.6kj/g.
A 12.0 mL sample of a compound has a density of 1.44 g/mL. What is the weight of the sample in g?
A 1.00 L flask is filled with 1.00 g of argon at 25 °C. A sample of ethane vapor is added to the same flask until the total pressure is 1.350 atm. What is the partial pressure of argon in the flask and what is the partia ...
Identify the atoms that are oxidized and reduced, the change in oxidation state for each, and the oxidizing and reducing agents in each of the following equations: a) Mg(s) + NiCl2(aq) ? MgCl2(aq) + Ni(s) b) PCl3(l) + Cl ...
A soil analysis was done for the exchangeable cations in the soil and the results were as follows:Ca = 1.8 g/kg (atomic wt. Calcium is 40 g/mol)Mg = 3.25 cmolK = 3 cmolNa = 0.230 g/kg (atomic wt. of Na is 23 g/mol)H = 9 ...
Ionic Compounds Writing Assignment: Ionic Compounds in Action A national chemistry council has selected you to create marketing materials for its new "Chemistry All Around Us" campaign. Your task is to increase public aw ...
Calculate the molality of a solution prepared by dissolving 4.75g of C10H8 in 75.0 mL of C6H6 (l) of density, 0.879g/mL.
What is the volume occupied by 29.1 g of argon gas at a pressure of 1.23 atm and a temperature of 399 K?
1. Show the alcohols you would obtain by reduction of the following carbonyl compounds: (a) CH 3 (b) (c) O CH 3 | || ...
For this question imagine that sea water is a 3.5 mass % solution of NaCl with a density of 1.00g/mL. Assume full dissociation of the NaCl. a) Calculate the freezing point of sea water.Briefly explain why it is not 0 (de ...
Consider a string with a length of 54.5 cm tied at both end (like on a stringed instrument). If the frequency of the first harmonic on the string is 256 Hz, determine the speed of the wave in the string. Post your answer ...
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