Calculate the enthalpy of combustion
The enthalpy of formation of ethanol, C2H5OH, is -277.0 kJ/mol at 298.15k. calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 (g) and H2O.
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Nitroglycerine, C3H5(NO3)3(l), a powerful explosive used in mining, detonates to produce a hot gaseous mixture of nitrogen, water, carbon dioxide and oxygen.
69.7 grams of solute with a molecular mass of 2790 grams are dissolved in enough water to make 1.00 dm3 of solution at 20 degrees Celsius. What is the osmotic pressure of the solution?
Describe various factors that are analyzed to study demographic profil, Describe various factors that are analyzed to study demographic profiles and their importance in tourism planning
A patient weighs 165 pounds and is to receive a drug at a dosage of 45.0 mg per kg of body weight. The drug is supplied as a solution that contains 25.0 mg of drug per mL of solution. How many mL of the drug should the patient receive?
Boron has two stable isotopes with masses of 10.01294 u and 11.00931 u. The average molar mass of boron is 10.81 u. What is the percent abundance of each isotope?
A voltaic cell is created with one half-cell consisting of a copper electrode immersed in 1.0 M CuSO4 solution and the other half cell consisting of a lead electrode immersed in a 1.0 M Pb(NO3)2 solution. Each half-cell is maintained at 25o C. Wha
A cylindrical glass tube 15.0 cm in length is filled with ethanol. The mass of ethanol needed to fill the tube is found to be 9.64g. Calculate the inner diameter of the tube in centimeters.
Given the equation At a particular temperature, K = 1.6 ´ 104. If you mixed 5.0 mol B, 0.10 mol C, and 0.0010 mol A in a one-liter container, which direction would the reaction initially proceed?
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Thinking back to your experiences with educational technology as a student and teacher, provide an example of a time when technology enhanced learning
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Question: The components of the health history include all of the following except which one?
The following information is recorded in the health history: "Patient denies chest pain, palpitations, orthopnea, and paroxysmal nocturnal dyspnea."
Explain pathology associated with the CNS, summarize the model key topic in 5-6 sentences. The pathology choosing should involve the CNS
The nurse is evaluating the care of a 12-year-old client with a congenital heart defect. Which situation indicates a need for further teaching at discharge?
Which data would indicate that the child is not meeting tasks according to Erikson's stages of psychosocial development?