The Ideal-Gas Equation (Section)
Many gases are shipped in high-pressure containers. Consider a steel tank whose volume is 55.0 gallons that contains O2 gas at a pressure of 16,500 kPa at 23 °C. (a) What mass of O2does the tank contain? (b) What volume would the gas occupy at STP? (c) At what temperature would the pressure in the tank equal 150.0 atm? (d) What would be the pressure of the gas, in kPa, if it were transferred to a container at 24 °C whose volume is 55.0 L?
Chemistry 105 – WEEK 10 and 11 By Gustavo Silva Chapter 8 – Chemical Equations Continuation Heat in Chemical Reactions - It is the amount of heat used or produced in a reaction - EXOTHERMIC REACTIONS: releases (produces) heat. The heat can be treated as a product - ENDOTHERMIC REACTIONS: absorbs (uses) heat. The heat can be treated as a reactant Chapter 9 – Calculations from Chemical Equations Stoichiometry - *Equations must be balanced before making any calculations - It is the study of the quantitative relationship between products and reactants - It studies how much of the products will be formed from a quantity of reactants Molar Ratios - Ratio of moles between substances in a chemical equation - It can be used as