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The equation for a van der Waals gas in (P + na^2/V^2)(V-nb)=nRT. 5 moles of the van der Waals gas nitrogen expands irreversible and isothermally from an initial volume of 40.0 liters at 310K, against an external pressure of 2.5 atmospheres. Calculate the work done on the surroundings.
When a voltage of 30 V is applied to the heater for 3.0 min, a constant current of 2.5 A is observed. The calorimeter temperature increases from 20.00C to 25.59C. Calculate C_bomb for the calorimeter. Assume 2000.0 g of water in the bucket.
What amount of HCl gas must be added to 1.00 L of a buffer solution that contains [acetic acid] =2.0 M and [acetate]=1.0 M in order to produce a solution with pH =4.24
Ammonia reacts with oxygen gas to priduce water and nitrogen gas. What mass of oxygen gas must be used to react
When diborane (B2H6) dissociates in either solvents, such as tetrahydrofuran (THF), a complex between borane (BH3) and the ether is formed. (a) In the Lewis sense, what is the function of BH3 as it forms the complex? Explain.
If 20.0 dm3 of methane, CH4, react with 200.0 dm3 of air at STP, calculate the dm3 of carbon dioxide gas produced.
Predict whether a reaction will occur in each of the following. if so write the balanced chemical equation as well as the net ionic equation. Phases are all required for all species.
A solution of ethylene glycol and water has a boiling point of 109.8 degrees celcius. What is the freezing point. (Kf H2o=1.86 degrees celcius/m; Kb H20=0.52 degrees celcius/m)
Calculate the molarity of a solution after adding 5mL of tert-butyl chloride to a 100mL volumetric flask and add acetone for a total volume of 100mL.
A power plant burns 10^4 kg hr-1 of coal containing 2.5% sulfur. The effluent is released from a single stack of height 70 m. The plume rise is normally about 30 m.
an isotope of sodium 24na has a half-life of 15 hours. a sample of this isotope has mass 2 g.a find the amount
What is the solubility of BaF2 (Ksp = 1.8x10-7) in pure water in grams per liter? The molecular weight of BaF2 is 175.
What is the molecular formula of the molecule that had an empiricial formula of C2 H4 S and a molar mass of 180.35% g/molecular.
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