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Explain how many mL of O2 would be produced by the reaction of 8.03mL of 30.0% H2O2? The barometric pressure (Patm) was 764torr as well as the temperature was 24.0 Celsius. Convert % H2O2 by mass to M of H2O2 after that moles of H2O2 then miles of O2, then L of O2
1.00 mol Zn reacts with excess hydrochloric acid, 1.00 mol H2 gas is produced. At 25ºC and 1.00 atm= 101,325 Pa, this amount of H2 occupies 24.5 L (= 24.5 x10-3 m3). How much work is done by the chemical system.
A sample of a gas occupies 1.40 x 103 mL at 25oC and 760 mmHg. What volume will it occupy at the same temperature and 380 mmHg
How much energy is released during the complete combustion of 372 grams of cyclohexane ?
What is the maximum concentration of Cd2+ that can exist in a solution in which the S2- concentration is 2.5 x 10-6? Ksp(CdS) = 8.0 x 10-27
the concentration of a solution sodium iodide ion will be determined by titrating 90 ml of it using potassium
Assume that the relative yield of the products in your experiment will be proportional only to the numbers of hydrogens that give each product when substituted for by chlorine.
1) Identify the compound with the highest wavelength in an UV spectrum. a. benzene b. phenol c. phenolate ion d. aniline e. anilinium ion
Cyclohexane has a freezing point of 6.50 degrees C and a Kf of 20.0 degree C/m . What is the freezing point of a solution made by dissolving 0.463g of biphenyl (C12H10) in 25.0g of cyclohexane
how does direct current break apart water molecule? does the dc current fill the outer shell full of electrons making a
Describe the role of biotin in the gluconeogenic pathway. What effect would biotin deficiency have on a person, and how might you overcome or avoid that effect?
Calculate the fraction of atoms in a sample of argon gas at 360. K that have an energy of 14.0 kJ or greater.
Consider the titration of 82.0 mL of 0.147 M Ba(OH)2 by 0.588 M HCl. Calculate the pH of the resulting solution after the following volumes of HCl have been added.
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