The geometry of the SF4 molecule is

The first-order decomposition, A → products, has a rate constant of 0.150 s–1. Starting with o = 0.350 M, how much time is required for t = 0.125 M?

The pH of tomato juice is about 4.5. Calculate the concentration of hydrogen ions in this juice.

Identify the conjugate base of HPO42–.

Which of the following solutions is acidic?

What is the pH of a 0.001 M Ca(OH)2 solution?

What is the boiling point of a solution of 12.0 g of urea (CH4N2O) in 165.0 g of water? (Kb (H2O) = 0.52 °C/m)

How much energy (heat) is required to convert 25.5 g of H2O(l) at 35.0°C to H2O(g) at 115.0°C? specific heat of ice: 2.09 J/g·°C   ΔHfus = 6.02 kJ/mol specific heat of water: 4.18 J/g·°C   ΔHvap = 40.7 kJ/mol specific heat of steam: 1.84 J/g·°C    

Which is the correct equilibrium constant expression for the following reaction? Fe2O3 (s) + 3H2 (g)    2Fe (s) + 3H2O (g)

The hydronium ion and the hydroxide ion, in that order, are: