Other Chemistry Answers

find the mass in grams of 1.00 x 10 23 molecules of N2

A solution of NaOH has a concentration of 7.5g/DM3.whatis the mass of NaOH contained in 500cm3?

explain the ideaof de-Broglie matter waves.

PCl3 + Cl2 ⇌ PCl5, calculate all three equilibrium concentrations when Kc = 16.0 and [PCl5] i = 1.00 M.

the temperature of 17g of water can be raised by 2.0c with __ or ___ of thermal energy

When 1.50 mol of CO2 and 1.50 mol H2 are placed in a 0.750-L container at 395ºC, the following

equilibrium is achieved: CO2(g) + H2(g) ↔ CO(g) + H2O(g).

If Kc = 0.802, what are the concentrations of each substance in the equilibrium mixture?

USE 3 SIG FIGS for each answer?

CO2 & H2 =

CO & H2O =

At 500K the reaction PCl5(g) ↔ PCl3(g) + Cl2(g) has a Kp = 0.497. In an equilibrium mixture at 500K,

the partial pressure of PCl5 is 0.860 atm and PCl3 is 0.350 atm.

What is the partial pressure of Cl2 in the equilibrium mixture?

At 1000K the value of Kp = .338 for the reaction 2SO3(g) ↔ 2SO2(g) + O2(g).

Calculate the value for Qp and predict the direction in which the reaction will proceed toward equilibrium if the initial pressures are PSO3 = 0.16 atm; PSO2 = 0.41 atm; PO2 = 2.5 atm.

Qp =

Direction? write either left or right =

For the formation of NH3 from N2 and H2, N2(g) + 3H2(g) ↔ 2NH3(g) Kp = 4.34 x10-3 at 300ºC.

What is the value of Kp for the reverse reaction?

Combining Equilibrium Expression. (Note: this is like Hess’s Law and equilibrium together. If you have to reverse and equation make sure to take the reciprocal of the Kp value. Also if you have to double or triple an equation that means you should be squaring the equilibrium constant and not just multiplying by 2.

3) Given that, at 700K, Kp = 54.0 H2(g) + I2(g) ↔ 2HI(g)

Kp = 1.04 x 10-4 N2(g) + 3H2(g) ↔ 2NH3(g)

Find the value of Kp for 2NH3(g) + 3I2(g) ↔ 6HI(g) + N2(g)