Other Chemistry Answers

What is the final temperature when 150.0 g of water at 90.0oC is added to 100.0 g of water at 30.0 oC?

Consider a solution prepared by adding 2.70 grams acetic acid to 122.8 grams of water:

a. what is the percentage by mass of concentration of acetic acid in this solution?

b. what is the mass of acetic acid is present in 25.0 grams of this solution?

Which term of the sequence 3, 12, 48,... is equal to 196 608?

Is it 12th, or, 10th, or 11th, or 9th.

Define Le Chatelier’s Principle

ii) Calculate the concentration of methanol produced by the reaction in (b), with the

following reactant concentrations:

CO: 2.13 x 10-3 mol L-1

H2: 1.4 x 10-3 mol L-1

I) In an equilibrium mixture at 100°C the following gas concentrations were found:

CO : 3.76 x 10-3 mol L-1 H2: 4.30 x 10-3 mol L-1

CH3OH: 4.17 x 10-10 mol L-1

Calculate the value of K(eq) at 100°C

Methanol is a very important starting material in the chemical industry. A key reaction in its

manufacture is:

CO(g) + 2H2(g) ⇌ CH3OH(g) + 52 kJ

a) Write an expression for the equilibrium constant K