1. a 15.8 liter solution contains 10.4 moles of nacl. what is its concentration?

 = 0.658 M

Explanation:

Molarity also known as concentration is given by the formula;

Concentration = Number of moles / Volume in liters

In this case;

Number of moles = 10.4 moles

Volume = 15.8 liters

Concentration = 10.4 moles/ 15.8 liters

                        = 0.658 moles/liter

                       = 0.658 M

conduction is the transfer of thermal energy (heat in transfer) due to collisions between the molecules in the object. collisions between adjacent atoms and molecules transfer kinetic energy from the warmer to the cooler object. the objects must be in physical contact.