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In an experiment, a student dissolves 32.6g of CaF2 in 0.98kg of solvent. What is the molality of this solution? Show your work.
What is the percent composition by mass of a solution made by dissolving 25.0g of sodium phosphate, Na3PO4, in 50.0g of water?
Important information about Net ionic equation, What is the net ionic equation of 2Fe(NH4)2(SO4)2*6H2O + 6K2C2O4 + H2O2 + H2SO4
If the minimum energy required to break the C-Cl bond in CF3Cl is 540 kJ/mol, what is the longest wavelength of radiation that will break this bond?
How many grams of reactant are left over when 132.00g of propane are reacted with 96.0g of oxygen to form carbon dioxide
What is the maximum amount of work that could be done by the cell on its surroundings during this experiment?
1.a) Calculate the pH of a solution which is 0.0030 M in KOH and 0.023 M in NaNO3using activities.
Estimate the enthalpy change for the reaction between 1 mol c2h5oh as liquid ethanol, a fuel made by fermenting corn
Calculate the surface area for a 35.0mg sample of this material. 3. A 10.0-mL sample of contaminated water had 7.748mg of mercury in it. After treatment with 10.0mg of the new spongy material, 0.001mg of mercury remained in the contaminated water...
At the anode in a galvanic cell (voltaic cell), a. electrons are accepted b. electrons are produced AND oxidation takes place c. electrons are produced d. oxidation takes place e. reduction takes place
A reversible adiabatic expansion of NO2 (g) from an initial V=20dm^3 and an initial T=300K to a final P=1bar. Find Vf, Tf, and the change in entropy for both the system and surroundings.
Calculate the enthalpy change associated with the conversion of 25.0 grams of ice at -4.00°C to water vapor at 110.0°C. The specific heats of ice, water, and steam are 2.09 J/g-K, 4.18 J/g-K, and 1.84 J/g-K
A student obtains a 1.038 liter neon light bulb that contains 2.018 grams of neon gas at 298 K. (A) What is the pressure of the neon inside the bulb? (B) What is the pressure of the neon inside the bulb if the bulb and gas are cooled to 214 K?
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