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A bomb-type calorimeter is used to measure the heat evolved by the combustion of glucose, C6H12O6. Write the balanced reaction. A 3.00-g sample of glucose is placed in the iron bomb calorimeter with a mass of 4275 g. The bomb is filled with oxygen gas under pressure and placed in a well-insulated calorimeter vessel filled with 1.20 kg of water. The reaction vessel is ignited by the electrical heating of a wire within the bomb. The reaction causes the temperature of the calorimeter and its contents to rise from 19.00o.C to 25.50o.C. Calculate the H combustion for 1.00 mol of glucose. (The specific heat of iron = 0.107 cal/go.C or 0.447 J/g.oC; the molar mass of glucose = 180.0 g/mol.)
The pH of human muscle fluids is 6.8. Calculate the value of H3O+ in muscle fluid at 25 degrees Celcius. The answer should be in scientific notation.
Calculate the partial pressure of ozone and the number of ozone molecules per liter of air if the temperature and pressure were 20.0 °C and 758 mmHg, respectively.
What will be the effect of f electrons not sheilding completely on the size and ionization of energy of mercury? Use calculations for illustration if needed
What is the density of gaseous propane (C3H8) under the same conditions?
The student puts the penny into hydrochloric acid, where the zinc (but not the copper) reacts with hydrochloric acid via a single replacement reaction. The hydrogen is collected at 25 degrees Celsius over water. The collected gas occupies 0.899L a..
air initially occupying 1 m3 at 150 kpa 20degc undergoes an internally reversible compression during which pvn
a) How many pi bonds are in a molecule of N2. b)What is the hybridization of the NItrogen
using the diffence in electronegativity how can you tell metallic compounds. is there a range in en to indicate a
An aqueous solution has a vapor pressure of 82.6 at 50 . The vapor pressure of pure water at this temperature is 92.6. What is the concentration of in mass percent
An unknown acid has a molar mass of 60.05 g/mol. Given the following percent composition, what is the molecular formula. C-40 H-6.7 O-53.3
at 27 degrees celsius the vapor pressure of pure water is 23.76 mmhg and that of an aqueous solution of urea is 22.99
Calculate an approximate delta_h in kilojoules for the industrial synthesis of ethyl alcohol from ethylene: C2H4(g) + H2O(g) -> C2H5OH
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