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If a gas expands against a constant external pressure of 0.9 bar until its volume has amplified from 2.2 L to 6.2 L. During this process it absorbs 760.0 J of heat from the surroundings. Compute the energy change of the gas.
Mass of magnesium: 0.6 g Moles of magnesium. Mass of magnesium oxide: 1.00 g Moles of magnesium oxide
osmium has a density of 22.6 gcm3. what volume would be occupied by a 21.8 g sample of
methyl-1-hexanol a was reacted with nabrh2so4 to give b which upon treatment with magnesium in diethyl ether formed an
The value of the equilibrium constant for this reaction is 2.2 at 700 celsius. What will be the concentrations of all gases at equilibrium, when 2.00 mol of CO and 2. mol of H20 are mixed in a 2 liter reactor and heated to 700.
From the information below, determine the mass of substance C that is formed if 45.0 g of substance A reacts with 23.0g of substance B, assuming that the reaction between A and B goes to completion.
a 290ml flask contains pure helium at a pressure of 756torr . a second flask with a volume of 480ml contains pure argon
The normal boiling point of bromine is 58.8 C. Given that the vapor pressure pressure of bromine is 75.0 torr at 2.5 C, Calculate the molar enthalpy of vaporization of bromine.
A solution of ethylene and water has a boiling point of 109.8C. What is the freezing point
Draw a free energy profile for a reaction S to P that proceeds through a single transition state with Delta G knot equal to +2.8 kcal/mol and delta G double dagger equal to 14 kcal per mole. Label the appropiate difference.
Using the Ka values, calculate the pH of a buffer that contains the given concentrations of a weak acid and its conjugate bases. [1]. 0.86 M NaH2PO4 and 0.63 M Na2HPO4 [2] 0.60 M NaHCO3 and 0.72 M Na2CO3
Describe how you would prepare the following solutions from the dry solute and solvent. 1.00*10^2g of .500m KCl
35.00ml of a .500 M HCl was mixed with 25.00ml of a .500 M NaOH. What is the pH of the solution after mixing?
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