1. The density of ice at 0°C is 0.9168 g mlL"", and that of liquid water at 0°C is 0.9999 g mL-!. (1) What are the volumes of 1.000 g of ice and of 1.000 g of water at 0"C? (2) A sealed glass container with a capacity of exactly 100 mL contains 96.0 mL of liquid water at 0°C. If the water freezes, will the container rupture?

1 Intermolecular Forces Water is a polar molecule. It has an electric dipole strength of p = 6 x 10-30 C - m. This is roughly equivalent to a proton and an electron separated by a distance of d = 4 x 10-11 m (about the radius of a hydrogen atom). In this problem, we will use Coulomb's law to compare the force between two protons (H*), a proton and a water molecule, and two water molecules. Use the arrangement of the charges shown in the figure for your calculations. (a) r (b) (c) r (a) First, consider interactions at "short" distances. A chemical bond has a length on the order of r = 0.1 nm. • What is the force between two protons separated by a distance of r = 0.1 nm? • What is the force between a proton and a water molecule separated by a distance of r = 0.1 nm? What is the force between two water molecules separated by a distance of r = 0.1 nm? (b) Now consider a "long" distance: a separation of R = 1.0 nm. (This is about the length of ten hydrogen atoms lined up next to each…

Can water stay liquid below zero degrees Celsius?

What amount of heat (in kJ) is required to convert 15.5 g of an unknown solid (MM = 83.21 g/mol) at -5.00 °C to a liquid at 52.3 °C? (specific heat capacity of solid = 2.39 J/g･°C; specific heat capacity of liquid = 1.58 J/g･°C; ∆Hfus = 3.72 kJ/mol; normal freezing point, Tf = 10.3°C)