Chemistry Answers

Three liters of hydrogen at -20°C is allowed to warm to 27°C. What is the volume at this temperature if the pressure remains constant?

Three liters of hydrogen at -20°C is allowed to warm to 27°C.What is the volume at this temperature if the pressure remains constant.

A battery with a terminal voltage of 12V is connected to a circuit consisting of four 10 ohms and one 5 ohms resistor all in series. Assume the battery has negligible internal resistance. Calculate the current through each resistor.

Phosphorous trichloride and phosphorous pentachloride equilibrate in the presence of molecular chlorine according to the reaction: PCl3(g) + Cl2(g) → PCl5(g). An equilibrium mixture at 450 K contains the following:

PPCl3 = 0.202 atm

PCl2 = 0.256 atm

PPCl5 = 3.45 atm

What is the value of Kp at this temperature?

In the coal-gasification process, the reaction is: CO_(g) + H₂O_(g) ⇌ CO_2(g) + H₂S_(g) + H_2(g). With 0.35 mol of CO and 0.40 mol of H₂O placed in a 1.00-L reaction vessel, there is 0.19 mol of CO remaining. Determine the K_eq at the temperature of the experiment? 

Dinitrogentetraoxide partially decomposes according to the following equilibrium: N₂O_4(g) ⇌ 2NO_2(g). A 1.00-L flask is charged with 0.04000 mol of N₂O₄. At equilibrium at 373 K, 0.0055 mol of N₂O₄ remains. Determine the K_eq for this reaction.

Two mole of an ideal gas is heated at a constant pressure of 101.3K Nm^-2 from 273.2 K to 373K. Calculate, in Joules, the work involved

Meds information sheet. Cautions.

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Calculate the number of grams of solute necessary to prepare a 500.0 mL of a 0.10M

sodium hydroxide solution.

hydrochloric acid reacts with metal oxides and hydroxides to form chlorides and water what is the equation