A student does a titration to find the concentration of a solution of hydrochloric acid. The student titrates 25.00 cm3 of hydrochloric acid with sodium hydroxide solution of concentration 0.200 moles per dm3. The equation for the reaction is: HCl + NaOH --> NaCl + H2O The student added 28.60 cm3 of sodium hydroxide solution to neutralise the hydrochloric acid. Calculate the concentration of the hydrochloric acid.

Match the following vocabulary terms to their definitions. 1. amount of energy required to change 1 gram of material from the solid to the liquid state at its melting point 2. a measure of the kinetic energy of the particles of a substance 3. the amount of heat energy required to raise the temperature of 1 gram of liquid water from 14.5°c to 15.5°c 4. amount of energy required to change 1 gram of material from the liquid to the gaseous state at its boiling point 5. the amount of energy required to change 1 gram of a substance 1°c a. temperature b. latent heat of vaporization c. latent heat of fusion d. calorie e. specific heat

What are the major types of a chemical compound

Draw any one of the skeletal structures of a 2° alkyl bromide having the molecular formula of c6h13br and two stereogenic centers. indicate chirality by using wedge and hashed wedge notation. lone pairs do not need to be shown.