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When backpacking in the wilderness, hikers often boil water to sterilize it for drinking. Suppose that you are planning a backpacking trip and will need to boil 31 of water for your group.
What volume of fuel should you bring? Assume each of the following: the fuel has an average formula of C7H16; 15% of the heat generated from combustion goes to heat the water (the rest is lost to the surroundings); the density of the fuel is 0.78 g/mL; the initial temperature of the water is 25.0 degrees C and the standard enthalpy of formation of C7H16 is -224.4 kJ/mol
A compound containing nitrogen and oxygen is decomposed in the laboratory and produces 1.78 of nitrogen and 4.05 of oxygen emperical formula
Describe the paradox and explain how modern genetic discoveries have helped resolve this paradox. In your explanation, be sure to include a real biological (genetic) mechanism, summarize how the mechanism works and why it (partially) resolves this..
The oxalate in the compound was found by KMnO4 titration to constitute 54.81% of its mass. Molar mass of C2O4 is 88.0193 g/mol
Magnesium burns in oxygen gas to produce magnesium oxide. What mass of magnesium will react with a 0.25 L container of oxygen gas at 80oC and 770 mmHg?
Calculate the [H+], pH, and pOH in each of the following solutions in which the hydroxide ion concentrations are A) 0.0068M B) 6.4 X 10^-5M C) 1.6 X 10^-8M D) 8.2 X 10^-12M
cs2g o2g co2g so2gconsider the unbalanced equation above. a 0.150 g sample of cs2 is reacted with 265 ml of o2 at
Ranked the free energy changes for hydrolysis of these phosphorylated compounds from the most negative (on the left) to the most positive (on the right)
A beaker with 1.30×102 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M .
An automobile gasoline tank holds 36 kg of gasoline. When the gasoline burns, 95 kg of oxygen is consumed, and carbon dioxide and water are produced.
Sodium Carbonate (NaCO3) is available in very pure form and can be used to standardize acid solutions. What is the molarity of the HCl solution if 25.3 mL of the solution is required to react with 0.256 g of Na2Co3
What concentration of glucose will be isotonic with 1.2% CaCl2 solution? Assume a van't Hoff factor of 2.8 for the CaCl2 solution. The molar masses of glucose and CaCl2 are 180.2 g/mol and 111.0 g/mol, respectively.
Determine the concentration of H+ ions in a solution of HCl that was prepared b diluting 50.0 mL of concentrated (11.6 M) Hydrochloric acid to a final volume of 500mL?
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